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authorAaro Koskinen <aaro.koskinen@iki.fi>2018-11-25 00:17:04 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-12-17 09:38:33 +0100
commit2c37b2f49ba7225785a066fa5a477faf7d3fc530 (patch)
treeb13fb96a229345673a027208eb4a02572abdbb65 /drivers/usb
parent3d7eec166f65282c625d95289cb04ee61407ebfe (diff)
USB: omap_udc: use devm_request_irq()
[ Upstream commit 286afdde1640d8ea8916a0f05e811441fbbf4b9d ] The current code fails to release the third irq on the error path (observed by reading the code), and we get also multiple WARNs with failing gadget drivers due to duplicate IRQ releases. Fix by using devm_request_irq(). Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/gadget/udc/omap_udc.c37
1 files changed, 10 insertions, 27 deletions
diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index a8709f9e5648..2945408f0eec 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2886,8 +2886,8 @@ bad_on_1710:
udc->clr_halt = UDC_RESET_EP;
/* USB general purpose IRQ: ep0, state changes, dma, etc */
- status = request_irq(pdev->resource[1].start, omap_udc_irq,
- 0, driver_name, udc);
+ status = devm_request_irq(&pdev->dev, pdev->resource[1].start,
+ omap_udc_irq, 0, driver_name, udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[1].start, status);
@@ -2895,20 +2895,20 @@ bad_on_1710:
}
/* USB "non-iso" IRQ (PIO for all but ep0) */
- status = request_irq(pdev->resource[2].start, omap_udc_pio_irq,
- 0, "omap_udc pio", udc);
+ status = devm_request_irq(&pdev->dev, pdev->resource[2].start,
+ omap_udc_pio_irq, 0, "omap_udc pio", udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[2].start, status);
- goto cleanup2;
+ goto cleanup1;
}
#ifdef USE_ISO
- status = request_irq(pdev->resource[3].start, omap_udc_iso_irq,
- 0, "omap_udc iso", udc);
+ status = devm_request_irq(&pdev->dev, pdev->resource[3].start,
+ omap_udc_iso_irq, 0, "omap_udc iso", udc);
if (status != 0) {
ERR("can't get irq %d, err %d\n",
(int) pdev->resource[3].start, status);
- goto cleanup3;
+ goto cleanup1;
}
#endif
if (cpu_is_omap16xx() || cpu_is_omap7xx()) {
@@ -2921,22 +2921,11 @@ bad_on_1710:
create_proc_file();
status = usb_add_gadget_udc_release(&pdev->dev, &udc->gadget,
omap_udc_release);
- if (status)
- goto cleanup4;
-
- return 0;
+ if (!status)
+ return 0;
-cleanup4:
remove_proc_file();
-#ifdef USE_ISO
-cleanup3:
- free_irq(pdev->resource[2].start, udc);
-#endif
-
-cleanup2:
- free_irq(pdev->resource[1].start, udc);
-
cleanup1:
kfree(udc);
udc = NULL;
@@ -2980,12 +2969,6 @@ static int omap_udc_remove(struct platform_device *pdev)
remove_proc_file();
-#ifdef USE_ISO
- free_irq(pdev->resource[3].start, udc);
-#endif
- free_irq(pdev->resource[2].start, udc);
- free_irq(pdev->resource[1].start, udc);
-
if (udc->dc_clk) {
if (udc->clk_requested)
omap_udc_enable_clock(0);