diff mbox series

fbarray: fix uninitialized variable usage

Message ID cf6bb1eb3f5e4740b462998df559ce3b2247a3bb.1613757281.git.anatoly.burakov@intel.com (mailing list archive)
State New
Delegated to: David Marchand
Headers show
Series fbarray: fix uninitialized variable usage | expand

Checks

Context Check Description
ci/iol-testing success Testing PASS
ci/iol-abi-testing success Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/github-robot success github build: passed
ci/travis-robot fail travis build: failed
ci/intel-Testing success Testing PASS
ci/iol-broadcom-Functional success Functional Testing PASS
ci/Intel-compilation success Compilation OK
ci/iol-broadcom-Performance success Performance Testing PASS
ci/checkpatch success coding style OK

Commit Message

Burakov, Anatoly Feb. 19, 2021, 5:54 p.m. UTC
When file truncation fails, the log message attempts to print a path of
file we failed to truncate, but this path was never set to anything and,
what's worse, was uninitialized. Fix it by passing path from the caller.

Fixes: c44d09811b40 ("eal: add shared indexed file-backed array")
Cc: stable@dpdk.org
Coverity ID: 366122

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
 lib/librte_eal/common/eal_common_fbarray.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/lib/librte_eal/common/eal_common_fbarray.c b/lib/librte_eal/common/eal_common_fbarray.c
index d974f3dab7..592ec58594 100644
--- a/lib/librte_eal/common/eal_common_fbarray.c
+++ b/lib/librte_eal/common/eal_common_fbarray.c
@@ -81,9 +81,8 @@  get_used_mask(void *data, unsigned int elt_sz, unsigned int len)
 }
 
 static int
-resize_and_map(int fd, void *addr, size_t len)
+resize_and_map(int fd, const char *path, void *addr, size_t len)
 {
-	char path[PATH_MAX];
 	void *map_addr;
 
 	if (eal_file_truncate(fd, len)) {
@@ -792,7 +791,7 @@  rte_fbarray_init(struct rte_fbarray *arr, const char *name, unsigned int len,
 		if (eal_file_lock(fd, EAL_FLOCK_SHARED, EAL_FLOCK_RETURN))
 			goto fail;
 
-		if (resize_and_map(fd, data, mmap_len))
+		if (resize_and_map(fd, path, data, mmap_len))
 			goto fail;
 	}
 	ma->addr = data;
@@ -895,7 +894,7 @@  rte_fbarray_attach(struct rte_fbarray *arr)
 	if (eal_file_lock(fd, EAL_FLOCK_SHARED, EAL_FLOCK_RETURN))
 		goto fail;
 
-	if (resize_and_map(fd, data, mmap_len))
+	if (resize_and_map(fd, path, data, mmap_len))
 		goto fail;
 
 	/* store our new memory area */