From: Colin Ian King colin.king@canonical.com
[ Upstream commit a7f40c233a6b0540d28743267560df9cfb571ca9 ]
The comparison of hcd->irq to less than zero for an error check will never be true because hcd->irq is an unsigned int. Fix this by assigning the int retval to the return of platform_get_irq and checking this for the -ve error condition and assigning hcd->irq to retval.
Addresses-Coverity: ("Unsigned compared against 0") Fixes: c856b4b0fdb5 ("USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe()") Signed-off-by: Colin Ian King colin.king@canonical.com Link: https://lore.kernel.org/r/20200515165453.104028-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/usb/host/ehci-mv.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c index 4edcd7536a01b..9d93e7441bbca 100644 --- a/drivers/usb/host/ehci-mv.c +++ b/drivers/usb/host/ehci-mv.c @@ -192,11 +192,10 @@ static int mv_ehci_probe(struct platform_device *pdev) hcd->rsrc_len = resource_size(r); hcd->regs = ehci_mv->op_regs;
- hcd->irq = platform_get_irq(pdev, 0); - if (hcd->irq < 0) { - retval = hcd->irq; + retval = platform_get_irq(pdev, 0); + if (retval < 0) goto err_disable_clk; - } + hcd->irq = retval;
ehci = hcd_to_ehci(hcd); ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;