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usb: dwc2: Add missing null check

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Add in the missing null check for dev->driver that is present at other
points in the function before it is dereferenced.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
Reviewed-by: Marek Vasut <marek.vasut@mailbox.org>
Link: https://lore.kernel.org/r/20250929-usb_dwc2-v1-1-863133dcbcde@linaro.org
Signed-off-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
This commit is contained in:
Andrew Goodbody
2025-09-29 17:40:43 +01:00
committed by Mattijs Korpershoek
parent f586675872
commit 5ac61383b2
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/gadget/dwc2_udc_otg_xfer_dma.c
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@@ -526,7 +526,7 @@ static int dwc2_udc_irq(int irq, void *_dev)
if (gotgint & GOTGINT_SES_END_DET) {
debug_cond(DEBUG_ISR, "\t\tSession End Detected\n");
/* Let gadget detect disconnected state */
if (dev->driver->disconnect) {
if (dev->driver && dev->driver->disconnect) {
spin_unlock_irqrestore(&dev->lock, flags);
dev->driver->disconnect(&dev->gadget);
spin_lock_irqsave(&dev->lock, flags);