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| author | Wei Yongjun <yongjun_wei@trendmicro.com.cn> | 2014-07-20 11:42:07 +0800 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2014-08-19 09:27:24 -0500 |
| commit | 7042e8f2f6f5c76b6173748570312bbeb044c7dd (patch) | |
| tree | 9542c4115e209f0652993af290b6c17df16795c1 /drivers/usb/gadget/legacy/inode.c | |
| parent | 788b0bc46558d06f923afae59f881356ac382381 (diff) | |
| download | linux-7042e8f2f6f5c76b6173748570312bbeb044c7dd.tar.gz linux-7042e8f2f6f5c76b6173748570312bbeb044c7dd.tar.bz2 linux-7042e8f2f6f5c76b6173748570312bbeb044c7dd.zip | |
usb: gadget: Fix return value check in ep_write()
In case of error, the function memdup_user() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/gadget/legacy/inode.c')
| -rw-r--r-- | drivers/usb/gadget/legacy/inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index 2e4ce7704908..e96077b8bf79 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -440,7 +440,7 @@ ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) value = -ENOMEM; kbuf = memdup_user(buf, len); - if (!kbuf) { + if (IS_ERR(kbuf)) { value = PTR_ERR(kbuf); goto free1; } |