From 16ef8def80ea97c3cacdcaa765bdf62b2d94f86d Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 27 Apr 2010 00:24:00 +0200 Subject: [PATCH] dvb: Push down BKL into ioctl functions This requires changing all users of dvb_usercopy to omit the inode argument. Signed-off-by: Arnd Bergmann Signed-off-by: Frederic Weisbecker --- drivers/media/dvb/dvb-core/dmxdev.c | 31 +++++++++++++++------ drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 17 +++++++---- drivers/media/dvb/dvb-core/dvb_frontend.c | 30 ++++++++++---------- drivers/media/dvb/dvb-core/dvb_net.c | 15 +++++++--- drivers/media/dvb/dvb-core/dvbdev.c | 17 +++++++---- drivers/media/dvb/dvb-core/dvbdev.h | 11 +++----- drivers/media/dvb/firewire/firedtv-ci.c | 5 ++-- drivers/media/dvb/ttpci/av7110.c | 4 +-- drivers/media/dvb/ttpci/av7110_av.c | 8 +++--- drivers/media/dvb/ttpci/av7110_ca.c | 5 ++-- 10 files changed, 85 insertions(+), 58 deletions(-) diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c index 9ddc57909d49..425862ffb285 100644 --- a/drivers/media/dvb/dvb-core/dmxdev.c +++ b/drivers/media/dvb/dvb-core/dmxdev.c @@ -25,6 +25,7 @@ #include #include #include +#include #include #include #include @@ -963,7 +964,7 @@ dvb_demux_read(struct file *file, char __user *buf, size_t count, return ret; } -static int dvb_demux_do_ioctl(struct inode *inode, struct file *file, +static int dvb_demux_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dmxdev_filter *dmxdevfilter = file->private_data; @@ -1084,10 +1085,16 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file, return ret; } -static int dvb_demux_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long dvb_demux_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl); + unlock_kernel(); + + return ret; } static unsigned int dvb_demux_poll(struct file *file, poll_table *wait) @@ -1139,7 +1146,7 @@ static int dvb_demux_release(struct inode *inode, struct file *file) static const struct file_operations dvb_demux_fops = { .owner = THIS_MODULE, .read = dvb_demux_read, - .ioctl = dvb_demux_ioctl, + .unlocked_ioctl = dvb_demux_ioctl, .open = dvb_demux_open, .release = dvb_demux_release, .poll = dvb_demux_poll, @@ -1152,7 +1159,7 @@ static struct dvb_device dvbdev_demux = { .fops = &dvb_demux_fops }; -static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file, +static int dvb_dvr_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1176,10 +1183,16 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file, return ret; } -static int dvb_dvr_ioctl(struct inode *inode, struct file *file, +static long dvb_dvr_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl); + unlock_kernel(); + + return ret; } static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait) @@ -1208,7 +1221,7 @@ static const struct file_operations dvb_dvr_fops = { .owner = THIS_MODULE, .read = dvb_dvr_read, .write = dvb_dvr_write, - .ioctl = dvb_dvr_ioctl, + .unlocked_ioctl = dvb_dvr_ioctl, .open = dvb_dvr_open, .release = dvb_dvr_release, .poll = dvb_dvr_poll, diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c index cb22da53bfb0..ef259a0718ac 100644 --- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c +++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include "dvb_ca_en50221.h" @@ -1181,7 +1182,7 @@ static int dvb_ca_en50221_thread(void *data) * * @return 0 on success, <0 on error. */ -static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, +static int dvb_ca_en50221_io_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1255,10 +1256,16 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file, * * @return 0 on success, <0 on error. */ -static int dvb_ca_en50221_io_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static long dvb_ca_en50221_io_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_ca_en50221_io_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl); + unlock_kernel(); + + return ret; } @@ -1611,7 +1618,7 @@ static const struct file_operations dvb_ca_fops = { .owner = THIS_MODULE, .read = dvb_ca_en50221_io_read, .write = dvb_ca_en50221_io_write, - .ioctl = dvb_ca_en50221_io_ioctl, + .unlocked_ioctl = dvb_ca_en50221_io_ioctl, .open = dvb_ca_en50221_io_open, .release = dvb_ca_en50221_io_release, .poll = dvb_ca_en50221_io_poll, diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c index 55ea260572bf..5450d1f7a538 100644 --- a/drivers/media/dvb/dvb-core/dvb_frontend.c +++ b/drivers/media/dvb/dvb-core/dvb_frontend.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include @@ -1188,14 +1189,14 @@ static void dtv_property_cache_submit(struct dvb_frontend *fe) } } -static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, +static int dvb_frontend_ioctl_legacy(struct file *file, unsigned int cmd, void *parg); -static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, +static int dvb_frontend_ioctl_properties(struct file *file, unsigned int cmd, void *parg); static int dtv_property_process_get(struct dvb_frontend *fe, struct dtv_property *tvp, - struct inode *inode, struct file *file) + struct file *file) { int r = 0; @@ -1328,7 +1329,6 @@ static int dtv_property_process_get(struct dvb_frontend *fe, static int dtv_property_process_set(struct dvb_frontend *fe, struct dtv_property *tvp, - struct inode *inode, struct file *file) { int r = 0; @@ -1359,7 +1359,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe, dprintk("%s() Finalised property cache\n", __func__); dtv_property_cache_submit(fe); - r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND, + r |= dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND, &fepriv->parameters); break; case DTV_FREQUENCY: @@ -1391,12 +1391,12 @@ static int dtv_property_process_set(struct dvb_frontend *fe, break; case DTV_VOLTAGE: fe->dtv_property_cache.voltage = tvp->u.data; - r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE, + r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE, (void *)fe->dtv_property_cache.voltage); break; case DTV_TONE: fe->dtv_property_cache.sectone = tvp->u.data; - r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE, + r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE, (void *)fe->dtv_property_cache.sectone); break; case DTV_CODE_RATE_HP: @@ -1480,7 +1480,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe, return r; } -static int dvb_frontend_ioctl(struct inode *inode, struct file *file, +static int dvb_frontend_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1502,17 +1502,17 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file, return -ERESTARTSYS; if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY)) - err = dvb_frontend_ioctl_properties(inode, file, cmd, parg); + err = dvb_frontend_ioctl_properties(file, cmd, parg); else { fe->dtv_property_cache.state = DTV_UNDEFINED; - err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg); + err = dvb_frontend_ioctl_legacy(file, cmd, parg); } up(&fepriv->sem); return err; } -static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, +static int dvb_frontend_ioctl_properties(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1548,7 +1548,7 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, } for (i = 0; i < tvps->num; i++) { - (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file); + (tvp + i)->result = dtv_property_process_set(fe, tvp + i, file); err |= (tvp + i)->result; } @@ -1580,7 +1580,7 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file, } for (i = 0; i < tvps->num; i++) { - (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file); + (tvp + i)->result = dtv_property_process_get(fe, tvp + i, file); err |= (tvp + i)->result; } @@ -1597,7 +1597,7 @@ out: return err; } -static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file, +static int dvb_frontend_ioctl_legacy(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -2022,7 +2022,7 @@ static int dvb_frontend_release(struct inode *inode, struct file *file) static const struct file_operations dvb_frontend_fops = { .owner = THIS_MODULE, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .poll = dvb_frontend_poll, .open = dvb_frontend_open, .release = dvb_frontend_release diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c index 441c0642b30a..a96eee38d60c 100644 --- a/drivers/media/dvb/dvb-core/dvb_net.c +++ b/drivers/media/dvb/dvb-core/dvb_net.c @@ -59,6 +59,7 @@ #include #include #include +#include #include #include #include @@ -1333,7 +1334,7 @@ static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned long num) return 0; } -static int dvb_net_do_ioctl(struct inode *inode, struct file *file, +static int dvb_net_do_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1435,10 +1436,16 @@ static int dvb_net_do_ioctl(struct inode *inode, struct file *file, return 0; } -static int dvb_net_ioctl(struct inode *inode, struct file *file, +static long dvb_net_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - return dvb_usercopy(inode, file, cmd, arg, dvb_net_do_ioctl); + int ret; + + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl); + unlock_kernel(); + + return ret; } static int dvb_net_close(struct inode *inode, struct file *file) @@ -1459,7 +1466,7 @@ static int dvb_net_close(struct inode *inode, struct file *file) static const struct file_operations dvb_net_fops = { .owner = THIS_MODULE, - .ioctl = dvb_net_ioctl, + .unlocked_ioctl = dvb_net_ioctl, .open = dvb_generic_open, .release = dvb_net_close, }; diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 94159b90f733..b915c39d782f 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -154,10 +154,11 @@ int dvb_generic_release(struct inode *inode, struct file *file) EXPORT_SYMBOL(dvb_generic_release); -int dvb_generic_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +long dvb_generic_ioctl(struct file *file, + unsigned int cmd, unsigned long arg) { struct dvb_device *dvbdev = file->private_data; + int ret; if (!dvbdev) return -ENODEV; @@ -165,7 +166,11 @@ int dvb_generic_ioctl(struct inode *inode, struct file *file, if (!dvbdev->kernel_ioctl) return -EINVAL; - return dvb_usercopy (inode, file, cmd, arg, dvbdev->kernel_ioctl); + lock_kernel(); + ret = dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl); + unlock_kernel(); + + return ret; } EXPORT_SYMBOL(dvb_generic_ioctl); @@ -377,9 +382,9 @@ EXPORT_SYMBOL(dvb_unregister_adapter); define this as video_usercopy(). this will introduce a dependecy to the v4l "videodev.o" module, which is unnecessary for some cards (ie. the budget dvb-cards don't need the v4l module...) */ -int dvb_usercopy(struct inode *inode, struct file *file, +int dvb_usercopy(struct file *file, unsigned int cmd, unsigned long arg, - int (*func)(struct inode *inode, struct file *file, + int (*func)(struct file *file, unsigned int cmd, void *arg)) { char sbuf[128]; @@ -416,7 +421,7 @@ int dvb_usercopy(struct inode *inode, struct file *file, } /* call driver */ - if ((err = func(inode, file, cmd, parg)) == -ENOIOCTLCMD) + if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD) err = -EINVAL; if (err < 0) diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h index f7b499d4a3c0..fcc6ae98745e 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.h +++ b/drivers/media/dvb/dvb-core/dvbdev.h @@ -116,8 +116,7 @@ struct dvb_device { wait_queue_head_t wait_queue; /* don't really need those !? -- FIXME: use video_usercopy */ - int (*kernel_ioctl)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg); + int (*kernel_ioctl)(struct file *file, unsigned int cmd, void *arg); void *priv; }; @@ -138,17 +137,15 @@ extern void dvb_unregister_device (struct dvb_device *dvbdev); extern int dvb_generic_open (struct inode *inode, struct file *file); extern int dvb_generic_release (struct inode *inode, struct file *file); -extern int dvb_generic_ioctl (struct inode *inode, struct file *file, +extern long dvb_generic_ioctl (struct file *file, unsigned int cmd, unsigned long arg); /* we don't mess with video_usercopy() any more, we simply define out own dvb_usercopy(), which will hopefully become generic_usercopy() someday... */ -extern int dvb_usercopy(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg, - int (*func)(struct inode *inode, struct file *file, - unsigned int cmd, void *arg)); +extern int dvb_usercopy(struct file *file, unsigned int cmd, unsigned long arg, + int (*func)(struct file *file, unsigned int cmd, void *arg)); /** generic DVB attach function. */ #ifdef CONFIG_MEDIA_ATTACH diff --git a/drivers/media/dvb/firewire/firedtv-ci.c b/drivers/media/dvb/firewire/firedtv-ci.c index 853e04b7cb36..d3c2cf60de76 100644 --- a/drivers/media/dvb/firewire/firedtv-ci.c +++ b/drivers/media/dvb/firewire/firedtv-ci.c @@ -175,8 +175,7 @@ static int fdtv_ca_send_msg(struct firedtv *fdtv, void *arg) return err; } -static int fdtv_ca_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *arg) +static int fdtv_ca_ioctl(struct file *file, unsigned int cmd, void *arg) { struct dvb_device *dvbdev = file->private_data; struct firedtv *fdtv = dvbdev->priv; @@ -217,7 +216,7 @@ static unsigned int fdtv_ca_io_poll(struct file *file, poll_table *wait) static const struct file_operations fdtv_ca_fops = { .owner = THIS_MODULE, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .open = dvb_generic_open, .release = dvb_generic_release, .poll = fdtv_ca_io_poll, diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c index 38915591c6e5..a6be529eec5c 100644 --- a/drivers/media/dvb/ttpci/av7110.c +++ b/drivers/media/dvb/ttpci/av7110.c @@ -708,7 +708,7 @@ static void gpioirq(unsigned long cookie) #ifdef CONFIG_DVB_AV7110_OSD -static int dvb_osd_ioctl(struct inode *inode, struct file *file, +static int dvb_osd_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -727,7 +727,7 @@ static int dvb_osd_ioctl(struct inode *inode, struct file *file, static const struct file_operations dvb_osd_fops = { .owner = THIS_MODULE, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .open = dvb_generic_open, .release = dvb_generic_release, }; diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c index 53884814161c..13efba942dac 100644 --- a/drivers/media/dvb/ttpci/av7110_av.c +++ b/drivers/media/dvb/ttpci/av7110_av.c @@ -1089,7 +1089,7 @@ static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len } -static int dvb_video_ioctl(struct inode *inode, struct file *file, +static int dvb_video_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1297,7 +1297,7 @@ static int dvb_video_ioctl(struct inode *inode, struct file *file, return ret; } -static int dvb_audio_ioctl(struct inode *inode, struct file *file, +static int dvb_audio_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; @@ -1517,7 +1517,7 @@ static int dvb_audio_release(struct inode *inode, struct file *file) static const struct file_operations dvb_video_fops = { .owner = THIS_MODULE, .write = dvb_video_write, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .open = dvb_video_open, .release = dvb_video_release, .poll = dvb_video_poll, @@ -1535,7 +1535,7 @@ static struct dvb_device dvbdev_video = { static const struct file_operations dvb_audio_fops = { .owner = THIS_MODULE, .write = dvb_audio_write, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .open = dvb_audio_open, .release = dvb_audio_release, .poll = dvb_audio_poll, diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c index ac7779c45c5b..4eba35a018e3 100644 --- a/drivers/media/dvb/ttpci/av7110_ca.c +++ b/drivers/media/dvb/ttpci/av7110_ca.c @@ -248,8 +248,7 @@ static unsigned int dvb_ca_poll (struct file *file, poll_table *wait) return mask; } -static int dvb_ca_ioctl(struct inode *inode, struct file *file, - unsigned int cmd, void *parg) +static int dvb_ca_ioctl(struct file *file, unsigned int cmd, void *parg) { struct dvb_device *dvbdev = file->private_data; struct av7110 *av7110 = dvbdev->priv; @@ -350,7 +349,7 @@ static const struct file_operations dvb_ca_fops = { .owner = THIS_MODULE, .read = dvb_ca_read, .write = dvb_ca_write, - .ioctl = dvb_generic_ioctl, + .unlocked_ioctl = dvb_generic_ioctl, .open = dvb_ca_open, .release = dvb_generic_release, .poll = dvb_ca_poll,