V4L/DVB (6514): em28xx: Include linux/mm.h

This em28xx-video.c uses functions from this header, but doesn't include it.
It depends on some v4l headers included two levels down including poll.h,
which includes mm.h.

These v4l headers might change, so it's best to include the headers needed
directly.

It also causes problems for the out of core build system's backward
compatibility with older kernels, which is the real reason I bothered to
create a patch for something that would otherwise be so minor that it would
hardly be worth the trouble.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c
index a4c2a907124a6529c38e143e2eeb60ed3958746d..2529c298b862a4c80c83404894783af34ca4534a 100644 (file)
--- a/drivers/media/video/em28xx/em28xx-video.c
+++ b/drivers/media/video/em28xx/em28xx-video.c
@@ -32,6 +32,7 @@
 #include <linux/usb.h>
 #include <linux/i2c.h>
 #include <linux/version.h>
+#include <linux/mm.h>
 #include <linux/video_decoder.h>
 #include <linux/mutex.h>