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V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download()

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Prevent NULL dereference if kmalloc() fails.

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>
This commit is contained in:
Roel Kluin 2009-09-18 20:09:52 -03:00 committed by Mauro Carvalho Chehab
parent 34e383dd13
commit 1601fb1498
1 changed files with 2 additions and 0 deletions
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2
drivers/media/dvb/dvb-usb/m920x.c
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@ -337,6 +337,8 @@ static int m920x_firmware_download(struct usb_device *udev, const struct firmwar
int i, pass, ret = 0; int i, pass, ret = 0;
buff = kmalloc(65536, GFP_KERNEL); buff = kmalloc(65536, GFP_KERNEL);
if (buff == NULL)
return -ENOMEM;
if ((ret = m920x_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0) if ((ret = m920x_read(udev, M9206_FILTER, 0x0, 0x8000, read, 4)) != 0)
goto done; goto done;