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Subject: media: v4l: ioctl: Use kmalloc to allocate a small chunk of memory Author: Sakari Ailus <[email protected]> Date: Sun Dec 20 21:17:17 2020 +0100 kvmalloc() was used to allocate the temporary memory buffer that was used to contain both the IOCTL argument as well as a possible array argument that could have been large. Now that the two are separated, the IOCTL argument is known to be small in size. Use kmalloc to allocate it instead of kvmalloc. Similarly for releasing it. Suggested-by: Arnd Bergmann <[email protected]> Signed-off-by: Sakari Ailus <[email protected]> Reviewed-by: Laurent Pinchart <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/v4l2-core/v4l2-ioctl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 9906b41004e9..8d5d9c39c162 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -3300,7 +3300,7 @@ video_usercopy(struct file *file, unsigned int orig_cmd, unsigned long arg, parg = sbuf; } else { /* too big to allocate from stack */ - mbuf = kvmalloc(ioc_size, GFP_KERNEL); + mbuf = kmalloc(ioc_size, GFP_KERNEL); if (NULL == mbuf) return -ENOMEM; parg = mbuf; @@ -3377,7 +3377,7 @@ out_array_args: err = -EFAULT; out: kvfree(array_buf); - kvfree(mbuf); + kfree(mbuf); return err; } _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
