From 4a8f3a5727c589a59bcaaca43dc1025b347b7a75 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Tue, 1 Apr 2008 16:48:23 -0300 Subject: [PATCH] V4L/DVB (7460): bttv: Bt832 - fix possible NULL pointer deref This patch does fix potential NULL pointer dereference Signed-off-by: Cyrill Gorcunov Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bt832.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/bt8xx/bt832.c b/drivers/media/video/bt8xx/bt832.c index a51876137880..f92f06dec0d0 100644 --- a/drivers/media/video/bt8xx/bt832.c +++ b/drivers/media/video/bt8xx/bt832.c @@ -97,6 +97,11 @@ int bt832_init(struct i2c_client *i2c_client_s) int rc; buf=kmalloc(65,GFP_KERNEL); + if (!buf) { + v4l_err(&t->client, + "Unable to allocate memory. Detaching.\n"); + return 0; + } bt832_hexdump(i2c_client_s,buf); if(buf[0x40] != 0x31) { @@ -211,7 +216,12 @@ bt832_command(struct i2c_client *client, unsigned int cmd, void *arg) switch (cmd) { case BT832_HEXDUMP: { unsigned char *buf; - buf=kmalloc(65,GFP_KERNEL); + buf = kmalloc(65, GFP_KERNEL); + if (!buf) { + v4l_err(&t->client, + "Unable to allocate memory\n"); + break; + } bt832_hexdump(&t->client,buf); kfree(buf); }