From 88b404c435ffb6c103faf85cc1b41077dcd03bf9 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 30 Jan 2013 03:03:43 -0300 Subject: [PATCH] [media] tm6000: check an allocation for failure This allocation had no error checking. It didn't need to be under the mutex so I moved it out form there. That makes the error handling easier and is a potential speed up. Signed-off-by: Dan Carpenter Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/tm6000/tm6000-core.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/media/usb/tm6000/tm6000-core.c b/drivers/media/usb/tm6000/tm6000-core.c index 22cc0116deb6..7c32353c59db 100644 --- a/drivers/media/usb/tm6000/tm6000-core.c +++ b/drivers/media/usb/tm6000/tm6000-core.c @@ -40,10 +40,13 @@ int tm6000_read_write_usb(struct tm6000_core *dev, u8 req_type, u8 req, u8 *data = NULL; int delay = 5000; - mutex_lock(&dev->usb_lock); - - if (len) + if (len) { data = kzalloc(len, GFP_KERNEL); + if (!data) + return -ENOMEM; + } + + mutex_lock(&dev->usb_lock); if (req_type & USB_DIR_IN) pipe = usb_rcvctrlpipe(dev->udev, 0); -- 2.39.5