V4L/DVB (13016): kmalloc failure ignored in lgdt3304_attach() and s921_attach()

Prevent NULL dereference if kmalloc() fails.

Cc: Markus Rechberger <mrechberger@sundtek.de>
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Douglas Schilling Landgraf <dougsland@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/dvb/frontends/lgdt3304.c b/drivers/media/dvb/frontends/lgdt3304.c
index eb72a98..e334b5d 100644 (file)
--- a/drivers/media/dvb/frontends/lgdt3304.c
+++ b/drivers/media/dvb/frontends/lgdt3304.c
@@ -363,6 +363,8 @@ struct dvb_frontend* lgdt3304_attach(const struct lgdt3304_config *config,
 
        struct lgdt3304_state *state;
        state = kzalloc(sizeof(struct lgdt3304_state), GFP_KERNEL);
+       if (state == NULL)
+               return NULL;
        state->addr = config->i2c_address;
        state->i2c = i2c;
 

diff --git a/drivers/media/dvb/frontends/s921_module.c b/drivers/media/dvb/frontends/s921_module.c
index 3f5a0e1..3156b64 100644 (file)
--- a/drivers/media/dvb/frontends/s921_module.c
+++ b/drivers/media/dvb/frontends/s921_module.c
@@ -169,6 +169,8 @@ struct dvb_frontend* s921_attach(const struct s921_config *config,
 
        struct s921_state *state;
        state = kzalloc(sizeof(struct s921_state), GFP_KERNEL);
+       if (state == NULL)
+               return NULL;
 
        state->addr = config->i2c_address;
        state->i2c = i2c;