kernel.git/drivers/usb/gadget/function/f_sourcesink.c, branch linux-3.18.yHosts the 0x221E linux distro kernel.
https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-3.18.y2019-03-23T07:18:53Zusb: gadget: Potential NULL dereference on allocation error2019-03-23T07:18:53ZDan Carpenter2018-12-21T20:42:52Zurn:sha1:bbda75dd25ed3e872986141297c8eb9138c9346b
[ 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>
usb: gadget: define free_ep_req as universal function2018-04-08T09:49:44ZFelipe F. Tonello2015-11-10T17:52:05Zurn:sha1:70fa9b508c19a47110c96f20bac460b90310c847
commit 079fe5a6da616891cca1a26e803e1df2a87e9ae5 upstream.
This function is shared between gadget functions, so this avoid unnecessary
duplicated code and potentially avoid memory leaks.
Reviewed-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
usb: gadget: zero: Fix warning generated by kbuild2014-09-09T14:46:58ZAmit Virdi2014-09-09T06:27:37Zurn:sha1:70aacc5777d1f1ca0a88067c9121ce86441bc4e0
The kbuild test bot generated the warning:
drivers/usb/gadget/function/f_sourcesink.c:1498: warning: comparison is
always false due to limited range of data type
This patch fixes it.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
CC: Felipe Balbi <balbi@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: zero: Add support for interrupt EP2014-08-27T19:13:18ZAmit Virdi2014-08-22T09:06:36Zurn:sha1:ef11982dd7a657512c362242508bb4021e0d67b6
Interrupt endpoints behave quite similar to the bulk endpoints with the
difference that the endpoints expect data sending/reception request at
particular intervals till the whole data has not been transmitted.
The interrupt EP support is added to gadget zero. A new alternate setting (=2)
has been added. It has 2 interrupt endpoints. The default parameters are set as:
bInterval: 1 ms for FS and 8 uFrames (implying 1 ms) for HS/SS
wMaxPacketSize: 64 bytes for FS and 1024 bytes for HS/SS
However, the same can be overridden through the module parameter interface.
The code is tested for HS and SS on a platform having DWC3 controller.
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
usb: gadget: Gadget directory cleanup - group usb functions2014-07-16T17:50:36ZAndrzej Pietrasiewicz2014-07-15T11:09:46Zurn:sha1:00a2430ff07d4e0e0e7e24e02fd8adede333b797
The drivers/usb/gadget directory contains many files.
Files which are related can be distributed into separate directories.
This patch moves the USB functions implementations into a separate directory.
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>