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authorShuah Khan <skhan@linuxfoundation.org>2019-05-29 13:46:15 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-29 13:26:32 -0700
commit3ea3091f1bd8586125848c62be295910e9802af0 (patch)
tree649bb8bc8859a6bcadf5ddf44b980ce6fbd51cb7 /drivers/usb/phy
parenta47686636d84eaec5c9c6e84bd5f96bed34d526d (diff)
downloadlinux-3ea3091f1bd8586125848c62be295910e9802af0.tar.bz2
usbip: usbip_host: fix stub_dev lock context imbalance regression
Fix the following sparse context imbalance regression introduced in a patch that fixed sleeping function called from invalid context bug. kbuild test robot reported on: tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-linus Regressions in current branch: drivers/usb/usbip/stub_dev.c:399:9: sparse: sparse: context imbalance in 'stub_probe' - different lock contexts for basic block drivers/usb/usbip/stub_dev.c:418:13: sparse: sparse: context imbalance in 'stub_disconnect' - different lock contexts for basic block drivers/usb/usbip/stub_dev.c:464:1-10: second lock on line 476 Error ids grouped by kconfigs: recent_errors ├── i386-allmodconfig │ └── drivers-usb-usbip-stub_dev.c:second-lock-on-line ├── x86_64-allmodconfig │ ├── drivers-usb-usbip-stub_dev.c:sparse:sparse:context-imbalance-in-stub_disconnect-different-lock-contexts-for-basic-block │ └── drivers-usb-usbip-stub_dev.c:sparse:sparse:context-imbalance-in-stub_probe-different-lock-contexts-for-basic-block └── x86_64-allyesconfig └── drivers-usb-usbip-stub_dev.c:second-lock-on-line This is a real problem in an error leg where spin_lock() is called on an already held lock. Fix the imbalance in stub_probe() and stub_disconnect(). Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Fixes: 0c9e8b3cad65 ("usbip: usbip_host: fix BUG: sleeping function called from invalid context") Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/phy')
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