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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2018-12-21 23:42:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-03-05 17:58:47 +0100 |
| commit | 4670e8391710281740e3f2737750d4c38a1a8285 (patch) | |
| tree | 5b5903008b395433f97b0603b35f46a8bacd791f | |
| parent | 08c937f9a3db97c6758cd5032906ded77c7e9291 (diff) | |
| download | linux-stable-4670e8391710281740e3f2737750d4c38a1a8285.tar.gz linux-stable-4670e8391710281740e3f2737750d4c38a1a8285.tar.bz2 linux-stable-4670e8391710281740e3f2737750d4c38a1a8285.zip | |
usb: gadget: Potential NULL dereference on allocation error
[ Upstream commit df28169e1538e4a8bcd8b779b043e5aa6524545c ]
The source_sink_alloc_func() function is supposed to return error
pointers on error. The function is called from usb_get_function() which
doesn't check for NULL returns so it would result in an Oops.
Of course, in the current kernel, small allocations always succeed so
this doesn't affect runtime.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/usb/gadget/function/f_sourcesink.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c index 9cdef108fb1b..ed68a4860b7d 100644 --- a/drivers/usb/gadget/function/f_sourcesink.c +++ b/drivers/usb/gadget/function/f_sourcesink.c @@ -838,7 +838,7 @@ static struct usb_function *source_sink_alloc_func( ss = kzalloc(sizeof(*ss), GFP_KERNEL); if (!ss) - return NULL; + return ERR_PTR(-ENOMEM); ss_opts = container_of(fi, struct f_ss_opts, func_inst); |