summaryrefslogtreecommitdiff
path: root/tools/perf/arch/x86/entry
diff options
context:
space:
mode:
authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:39 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:33 +0100
commit8e9faa15469ed7c7467423db4c62aeed3ff4cae3 (patch)
treec02e82adbed28ab857971022fca14ef7ee375b65 /tools/perf/arch/x86/entry
parent7a7b5df84b6b4e5d599c7289526eed96541a0654 (diff)
HID: cp2112: fix gpio-callback error handling
In case of a zero-length report, the gpio direction_input callback would currently return success instead of an errno. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'tools/perf/arch/x86/entry')
0 files changed, 0 insertions, 0 deletions
while others hold the namespace lock. Some > even hold both. > > In this submitter's case, the panic manifested itself as a GP fault in > put_mountpoint() when it called hlist_del() and attempted to dereference > a m_hash.pprev that had been poisioned by another thread. Al Viro observed that the simple fix is to switch from using the namespace_sem to the mount_lock to protect the mountpoint hash table. I have taken Al's suggested patch moved put_mountpoint in pivot_root (instead of taking mount_lock an additional time), and have replaced new_mountpoint with get_mountpoint a function that does the hash table lookup and addition under the mount_lock. The introduction of get_mounptoint ensures that only the mount_lock is needed to manipulate the mountpoint hashtable. d_set_mounted is modified to only set DCACHE_MOUNTED if it is not already set. This allows get_mountpoint to use the setting of DCACHE_MOUNTED to ensure adding a struct mountpoint for a dentry happens exactly once. Cc: stable@vger.kernel.org Fixes: ce07d891a089 ("mnt: Honor MNT_LOCKED when detaching mounts") Reported-by: Krister Johansen <kjlx@templeofstupid.com> Suggested-by: Al Viro <viro@ZenIV.linux.org.uk> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'sound/soc/samsung/regs-i2s-v2.h')