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authorNicholas Mc Guire <hofrat@osadl.org>2018-08-30 12:16:59 +0200
committerFelipe Balbi <felipe.balbi@linux.intel.com>2018-10-02 10:43:12 +0300
commit24b804e40f23a199e6d82de5b5571bb642490ca1 (patch)
tree1fb4fa43b652de13ed0cdeec853d28b2a5aec3d9 /drivers/usb
parent4ab2b48c98f2ec9712452d520a381917f91ac3d2 (diff)
downloadlinux-next-24b804e40f23a199e6d82de5b5571bb642490ca1.tar.gz
usb: gadget: fsl_udc_core: fixup struct_udc_setup documentation
The original implementation from commit b504882da539 ("USB: add Freescale high-speed USB SOC device controller driver") returned NULL on failure and an allocated + initialized struct fsl_udc on success. The current code introduced in commit 4365831dadfe ("USB: fsl_usb2_udc: Get max ep number from DCCPARAMS register") only provides partial initialization as well as returning 0 on success and -1 on failures. The function documentation is updated accordingly. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Fixes: 4365831dadfe ("USB: fsl_usb2_udc: Get max ep number from DCCPARAMS register") Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/fsl_udc_core.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index 845dee3d93d6..20141c3096f6 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2234,8 +2234,10 @@ static void fsl_udc_release(struct device *dev)
Internal structure setup functions
*******************************************************************/
/*------------------------------------------------------------------
- * init resource for globle controller
- * Return the udc handle on success or NULL on failure
+ * init resource for global controller called by fsl_udc_probe()
+ * On success the udc handle is initialized, on failure it is
+ * unchanged (reset).
+ * Return 0 on success and -1 on allocation failure
------------------------------------------------------------------*/
static int struct_udc_setup(struct fsl_udc *udc,
struct platform_device *pdev)