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author | Gustavo A. R. Silva <gustavo@embeddedor.com> | 2017-08-08 17:26:13 -0500 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-08-10 11:36:50 -0700 |
commit | 99dbff202e28ad1dadf55b058bcae7908678e963 (patch) | |
tree | a1fdfbb8ee39e0134c70bc2da0515ca037de591d | |
parent | 4b67a54a62ae4188710f861c7e4829e2e8767038 (diff) | |
download | op-kernel-dev-99dbff202e28ad1dadf55b058bcae7908678e963.zip op-kernel-dev-99dbff202e28ad1dadf55b058bcae7908678e963.tar.gz |
usb: ehci-omap: fix error return code in ehci_hcd_omap_probe()
platform_get_irq() returns an error code, but the ehci-omap driver
ignores it and always returns -ENODEV. This is not correct and,
prevents -EPROBE_DEFER from being propagated properly.
Also, notice that platform_get_irq() no longer returns 0 on error:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e330b9a6bb35dc7097a4f02cb1ae7b6f96df92af
Print and propagate the return value of platform_get_irq on failure.
This issue was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/usb/host/ehci-omap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 94ea9ff..4d30853 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -130,8 +130,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) irq = platform_get_irq(pdev, 0); if (irq < 0) { - dev_err(dev, "EHCI irq failed\n"); - return -ENODEV; + dev_err(dev, "EHCI irq failed: %d\n", irq); + return irq; } res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |