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authorCyrill Gorcunov <gorcunov@gmail.com>2008-04-01 16:48:23 -0300
committerMauro Carvalho Chehab <mchehab@infradead.org>2008-04-06 17:13:18 -0300
commit4a8f3a5727c589a59bcaaca43dc1025b347b7a75 (patch)
tree8a9c366d6b474568496f4067a129b63017ece1df
parent6fdf5e67fe8d3c83500dad9acae985132c2459a3 (diff)
V4L/DVB (7460): bttv: Bt832 - fix possible NULL pointer deref
This patch does fix potential NULL pointer dereference Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
-rw-r--r--drivers/media/video/bt8xx/bt832.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/media/video/bt8xx/bt832.c b/drivers/media/video/bt8xx/bt832.c
index a5187613788..f92f06dec0d 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);
}