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authorStewart Smith <stewart@linux.ibm.com>2019-06-18 16:06:44 +1000
committerVasant Hegde <hegdevasant@linux.vnet.ibm.com>2020-01-07 11:02:17 +0530
commit5097f286865c6aa70c5a799a36b81b2e8cf38b05 (patch)
tree5cd169734ef98baef5d750d803419ad71c6e0d13
parent11424e62f5f779ac39badd465e56bc22d301a3ba (diff)
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hdata/vpd: fix printing (char*)0x00
[ Upstream commit ba977f2e4406f9de318afcdf5d666e77585ef269 ] GCC9 now catches this bug: In file included from hdata/vpd.c:17: In function ‘vpd_vini_parse’, inlined from ‘vpd_data_parse’ at hdata/vpd.c:416:3: /home/stewart/skiboot/include/skiboot.h:93:31: error: ‘%s’ directive argument is null [-Werror=format-overflow=] 93 | #define prlog(l, f, ...) do { _prlog(l, pr_fmt(f), ##__VA_ARGS__); } while(0) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ hdata/vpd.c:390:5: note: in expansion of macro ‘prlog’ 390 | prlog(PR_WARNING, | ^~~~~ hdata/vpd.c: In function ‘vpd_data_parse’: hdata/vpd.c:391:46: note: format string is defined here 391 | "VPD: CCIN desc not available for: %s\n", | ^~ cc1: all warnings being treated as errors Signed-off-by: Stewart Smith <stewart@linux.ibm.com> Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
-rw-r--r--hdata/vpd.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/hdata/vpd.c b/hdata/vpd.c
index 129b506..5a01bcc 100644
--- a/hdata/vpd.c
+++ b/hdata/vpd.c
@@ -328,6 +328,7 @@ static void vpd_vini_parse(struct dt_node *node,
const void *fruvpd, unsigned int fruvpd_sz)
{
const void *kw;
+ const char *desc;
uint8_t sz;
const struct card_info *cinfo;
@@ -381,15 +382,15 @@ static void vpd_vini_parse(struct dt_node *node,
dt_add_property_string(node,
"description", cinfo->description);
} else {
- kw = vpd_find(fruvpd, fruvpd_sz, "VINI", "DR", &sz);
- if (kw) {
+ desc = vpd_find(fruvpd, fruvpd_sz, "VINI", "DR", &sz);
+ if (desc) {
dt_add_prop_sanitize_val(node,
- "description", kw, sz);
+ "description", desc, sz);
} else {
dt_add_property_string(node, "description", "Unknown");
prlog(PR_WARNING,
"VPD: CCIN desc not available for: %s\n",
- (char *)kw);
+ (char*)kw);
}
}
}