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Message-Id: <1369753140-28802-1-git-send-email-emilgoode@gmail.com> Date: Tue, 28 May 2013 16:59:00 +0200 From: Emil Goode <emilgoode@...il.com> To: sage@...tank.com Cc: ceph-devel@...r.kernel.org, linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org, Emil Goode <emilgoode@...il.com> Subject: [PATCH] ceph: improve error handling in ceph_mdsmap_decode This patch makes the following improvements to the error handling in the ceph_mdsmap_decode function: - Add a NULL check for return value from kcalloc - Make use of the variable err Signed-off-by: Emil Goode <emilgoode@...il.com> --- fs/ceph/mdsmap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ceph/mdsmap.c b/fs/ceph/mdsmap.c index 9278dec..d4d3897 100644 --- a/fs/ceph/mdsmap.c +++ b/fs/ceph/mdsmap.c @@ -138,6 +138,8 @@ struct ceph_mdsmap *ceph_mdsmap_decode(void **p, void *end) m->m_info[mds].export_targets = kcalloc(num_export_targets, sizeof(u32), GFP_NOFS); + if (m->m_info[mds].export_targets == NULL) + goto badmem; for (j = 0; j < num_export_targets; j++) m->m_info[mds].export_targets[j] = ceph_decode_32(&pexport_targets); @@ -170,7 +172,7 @@ bad: DUMP_PREFIX_OFFSET, 16, 1, start, end - start, true); ceph_mdsmap_destroy(m); - return ERR_PTR(-EINVAL); + return ERR_PTR(err); } void ceph_mdsmap_destroy(struct ceph_mdsmap *m) -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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