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| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2018-04-18 21:39:46 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-22 15:01:30 +0200 |
| commit | dd40438fc6be7454c906093fe2a1b69ca98946fb (patch) | |
| tree | ba83c043a54009d56fc22a347ddc6ec5ffeeeeff | |
| parent | b1b59e16075f5e5da2943ce8de724ab96bc3c6c2 (diff) | |
| download | linux-stable-dd40438fc6be7454c906093fe2a1b69ca98946fb.tar.gz linux-stable-dd40438fc6be7454c906093fe2a1b69ca98946fb.tar.bz2 linux-stable-dd40438fc6be7454c906093fe2a1b69ca98946fb.zip | |
usb: core: phy: fix return value of usb_phy_roothub_exit()
usb_phy_roothub_exit() should return the error code from the phy_exit()
call if exiting the PHY failed.
However, since a wrong variable is used usb_phy_roothub_exit() currently
always returns 0, even if one of the phy_exit calls returned an error.
Clang also reports this bug:
kernel/drivers/usb/core/phy.c:114:8: warning: explicitly assigning value of
variable of type 'int' to itself [-Wself-assign] error, forbidden
warning: phy.c:114
Fix this by assigning the error code from phy_exit() to the "ret"
variable to propagate the error correctly.
Fixes: 07dbff0ddbd86c ("usb: core: add a wrapper for the USB PHYs on the HCD")
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/phy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/phy.c b/drivers/usb/core/phy.c index 09b7c43c0ea4..f19aaa3c899c 100644 --- a/drivers/usb/core/phy.c +++ b/drivers/usb/core/phy.c @@ -111,7 +111,7 @@ int usb_phy_roothub_exit(struct usb_phy_roothub *phy_roothub) list_for_each_entry(roothub_entry, head, list) { err = phy_exit(roothub_entry->phy); if (err) - ret = ret; + ret = err; } return ret; |