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authorAlexander Usyskin <alexander.usyskin@intel.com>2018-07-09 12:21:44 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-07-12 16:44:57 +0300
commita103af1b64d74853a5e08ca6c86aeb0e5c6ca4f1 (patch)
tree277d4d9deb9253437bf0a69e2638b2214b87e82f /drivers
parentcf1ed2c59b982d892b7c4d25b3dea2421cc5aa08 (diff)
downloadlinux-a103af1b64d74853a5e08ca6c86aeb0e5c6ca4f1.tar.xz
mei: don't update offset in write
MEI enables writes of complete messages only while read can be performed in parts, hence write should not update the file offset to not break interleaving partial reads with writes. Cc: <stable@vger.kernel.org> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/misc/mei/main.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index f690918f7817..302ba7a63bd2 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -312,7 +312,6 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
}
}
- *offset = 0;
cb = mei_cl_alloc_cb(cl, length, MEI_FOP_WRITE, file);
if (!cb) {
rets = -ENOMEM;