media: dvbdev: handle ENOMEM error at dvb_module_probe()

If allocation of struct board_info fails, return NULL from
dvb_module_probe().

Fix this warning:
	drivers/media/dvb-core/dvbdev.c:958 dvb_module_probe() error: potential null dereference 'board_info'.  (kzalloc returns null)

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index cf747d753a798d14feb908b32314dcbee6b20fa9..787fe06df2176ae4e41e6b98aff06b482acba7a3 100644 (file)
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -953,6 +953,8 @@ struct i2c_client *dvb_module_probe(const char *module_name,
        struct i2c_board_info *board_info;
 
        board_info = kzalloc(sizeof(*board_info), GFP_KERNEL);
+       if (!board_info)
+               return NULL;
 
        if (name)
                strlcpy(board_info->type, name, I2C_NAME_SIZE);