4.20-stable review patch. If anyone has any objections, please let me know.
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[ 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 --- drivers/usb/gadget/function/f_sourcesink.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c index 9cdef108fb1b3..ed68a4860b7d8 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);