b577cdcf17
PWM channel data was set to NULL before freeing it. This caused the following kernel warning while unexporting the channel. Set the channel data to NULL after freeing it. [ 70.495000] WARNING: CPU: 0 PID: 1 at drivers/base/devres.c:805 pwm_put+0x48/0x80() [ 70.505000] Modules linked in: [ 70.505000] CPU: 0 PID: 1 Comm: sh Not tainted 3.12.0-rc6-next-20131024-00012-gd4aec04-dirty #58 [ 70.515000] [<c0014ddc>] (unwind_backtrace+0x0/0xf4) from [<c0011784>] (show_stack+0x10/0x14) [ 70.525000] [<c0011784>] (show_stack+0x10/0x14) from [<c03a3cbc>] (dump_stack+0x7c/0xb0) [ 70.530000] [<c03a3cbc>] (dump_stack+0x7c/0xb0) from [<c001de68>] (warn_slowpath_common+0x6c/0x88) [ 70.540000] [<c001de68>] (warn_slowpath_common+0x6c/0x88) from [<c001df20>] (warn_slowpath_null+0x1c/0x24) [ 70.550000] [<c001df20>] (warn_slowpath_null+0x1c/0x24) from [<c01d1af8>] (pwm_put+0x48/0x80) [ 70.560000] [<c01d1af8>] (pwm_put+0x48/0x80) from [<c01d21c8>] (pwm_unexport_store+0x94/0xac) [ 70.565000] [<c01d21c8>] (pwm_unexport_store+0x94/0xac) from [<c010991c>] (sysfs_write_file+0x148/0x1d8) [ 70.575000] [<c010991c>] (sysfs_write_file+0x148/0x1d8) from [<c00b2a80>] (vfs_write+0xb4/0x1a0) [ 70.585000] [<c00b2a80>] (vfs_write+0xb4/0x1a0) from [<c00b3068>] (SyS_write+0x3c/0x78) [ 70.595000] [<c00b3068>] (SyS_write+0x3c/0x78) from [<c000e2e0>] (ret_fast_syscall+0x0/0x30) Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Reviewed-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com> |
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| .. | ||
| Kconfig | ||
| Makefile | ||
| core.c | ||
| pwm-ab8500.c | ||
| pwm-atmel-tcb.c | ||
| pwm-bfin.c | ||
| pwm-ep93xx.c | ||
| pwm-imx.c | ||
| pwm-jz4740.c | ||
| pwm-lpc32xx.c | ||
| pwm-mxs.c | ||
| pwm-pca9685.c | ||
| pwm-puv3.c | ||
| pwm-pxa.c | ||
| pwm-renesas-tpu.c | ||
| pwm-samsung.c | ||
| pwm-spear.c | ||
| pwm-tegra.c | ||
| pwm-tiecap.c | ||
| pwm-tiehrpwm.c | ||
| pwm-tipwmss.c | ||
| pwm-tipwmss.h | ||
| pwm-twl-led.c | ||
| pwm-twl.c | ||
| pwm-vt8500.c | ||
| sysfs.c | ||