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From ccf7775760dd923e21341438725946737eb8d8af Mon Sep 17 00:00:00 2001
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From: Pranith Kumar K <pkarampu@redhat.com>
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Date: Sat, 7 Sep 2019 20:18:01 +0530
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Subject: [PATCH 288/297] cluster/ec: Fix coverity issues
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Fixed the following coverity issue in both flush/fsync
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>>> CID 1404964: Null pointer dereferences (REVERSE_INULL)
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>>> Null-checking "fd" suggests that it may be null, but it has already
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been dereferenced on all paths leading to the check.
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>>> if (fd != NULL) {
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>>> fop->fd = fd_ref(fd);
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>>> if (fop->fd == NULL) {
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>>> gf_msg(this->name, GF_LOG_ERROR, 0,
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>>> "Failed to reference a "
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>>> "file descriptor.");
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Upstream-patch: https://review.gluster.org/c/glusterfs/+/23382
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fixes: bz#1745107
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Change-Id: I19c05d585e23f8fbfbc195d1f3775ec528eed671
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Signed-off-by: Pranith Kumar K <pkarampu@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/180673
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Ashish Pandey <aspandey@redhat.com>
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Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
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---
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xlators/cluster/ec/src/ec-generic.c | 28 ++++++++++++++++------------
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1 file changed, 16 insertions(+), 12 deletions(-)
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diff --git a/xlators/cluster/ec/src/ec-generic.c b/xlators/cluster/ec/src/ec-generic.c
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index b019050..192bb02 100644
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--- a/xlators/cluster/ec/src/ec-generic.c
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+++ b/xlators/cluster/ec/src/ec-generic.c
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@@ -196,12 +196,14 @@ ec_flush(call_frame_t *frame, xlator_t *this, uintptr_t target,
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GF_VALIDATE_OR_GOTO(this->name, frame, out);
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GF_VALIDATE_OR_GOTO(this->name, this->private, out);
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- error = ec_validate_fd(fd, this);
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- if (error) {
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- gf_msg(this->name, GF_LOG_ERROR, EBADF, EC_MSG_FD_BAD,
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- "Failing %s on %s", gf_fop_list[GF_FOP_FLUSH],
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- fd->inode ? uuid_utoa(fd->inode->gfid) : "");
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- goto out;
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+ if (fd) {
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+ error = ec_validate_fd(fd, this);
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+ if (error) {
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+ gf_msg(this->name, GF_LOG_ERROR, EBADF, EC_MSG_FD_BAD,
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+ "Failing %s on %s", gf_fop_list[GF_FOP_FLUSH],
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+ fd->inode ? uuid_utoa(fd->inode->gfid) : "");
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+ goto out;
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+ }
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}
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fop = ec_fop_data_allocate(frame, this, GF_FOP_FLUSH, 0, target, fop_flags,
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@@ -420,12 +422,14 @@ ec_fsync(call_frame_t *frame, xlator_t *this, uintptr_t target,
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GF_VALIDATE_OR_GOTO(this->name, frame, out);
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GF_VALIDATE_OR_GOTO(this->name, this->private, out);
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- error = ec_validate_fd(fd, this);
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- if (error) {
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- gf_msg(this->name, GF_LOG_ERROR, EBADF, EC_MSG_FD_BAD,
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- "Failing %s on %s", gf_fop_list[GF_FOP_FSYNC],
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- fd->inode ? uuid_utoa(fd->inode->gfid) : "");
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- goto out;
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+ if (fd) {
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+ error = ec_validate_fd(fd, this);
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+ if (error) {
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+ gf_msg(this->name, GF_LOG_ERROR, EBADF, EC_MSG_FD_BAD,
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+ "Failing %s on %s", gf_fop_list[GF_FOP_FSYNC],
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+ fd->inode ? uuid_utoa(fd->inode->gfid) : "");
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+ goto out;
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+ }
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}
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fop = ec_fop_data_allocate(frame, this, GF_FOP_FSYNC, 0, target, fop_flags,
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--
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1.8.3.1
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