floppy: fix usercopy direction
commit52f6f9d74f
upstream. As sparse points out, these two copy_from_user() should actually be copy_to_user(). Fixes:229b53c9bf
("take floppy compat ioctls to sodding floppy.c") Cc: stable@vger.kernel.org Acked-by: Alexander Popov <alex.popov@linux.com> Reviewed-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -3786,7 +3786,7 @@ static int compat_getdrvprm(int drive,
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v.native_format = UDP->native_format;
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mutex_unlock(&floppy_mutex);
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if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
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if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_params)))
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return -EFAULT;
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return 0;
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}
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@ -3822,7 +3822,7 @@ static int compat_getdrvstat(int drive, bool poll,
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v.bufblocks = UDRS->bufblocks;
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mutex_unlock(&floppy_mutex);
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if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
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if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_struct)))
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return -EFAULT;
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return 0;
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Eintr:
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