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From: Juergen Gross <jgross@suse.com>
To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org
Cc: Juergen Gross <jgross@suse.com>,
	samuel.thibault@ens-lyon.org, wei.liu2@citrix.com
Subject: [PATCH] mini-os: fix coverity issues in printf.c
Date: Wed, 17 Aug 2016 15:39:59 +0200	[thread overview]
Message-ID: <1471441199-5843-1-git-send-email-jgross@suse.com> (raw)

Fix two issues discovered by coverity.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 lib/printf.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/lib/printf.c b/lib/printf.c
index ad6a304..f9e9d68 100644
--- a/lib/printf.c
+++ b/lib/printf.c
@@ -379,6 +379,7 @@ reswitch:       switch (ch = (u_char)*fmt++) {
                                 padc = '0';
                                 goto reswitch;
                         }
+                        /* fallthrough */
                 case '1': case '2': case '3': case '4':
                 case '5': case '6': case '7': case '8': case '9':
                                 for (n = 0;; ++fmt) {
@@ -966,20 +967,16 @@ literal:
                                 width = 1;
                         if (flags & SUPPRESS) {
                                 size_t sum = 0;
-                                for (;;) {
-                                        if ((n = inr) < width) {
-                                                sum += n;
-                                                width -= n;
-                                                inp += n;
-                                                if (sum == 0)
-                                                        goto input_failure;
-                                                break;
-                                        } else {
-                                                sum += width;
-                                                inr -= width;
-                                                inp += width;
-                                                break;
-                                        }
+                                if ((n = inr) < width) {
+                                        sum += n;
+                                        width -= n;
+                                        inp += n;
+                                        if (sum == 0)
+                                                goto input_failure;
+                                } else {
+                                        sum += width;
+                                        inr -= width;
+                                        inp += width;
                                 }
                                 nread += sum;
                         } else {
-- 
2.6.6


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             reply	other threads:[~2016-08-17 13:39 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-17 13:39 Juergen Gross [this message]
2016-08-17 14:13 ` [PATCH] mini-os: fix coverity issues in printf.c Wei Liu
2016-08-17 14:25   ` Juergen Gross
2016-08-17 14:26     ` Wei Liu
2016-08-20 12:49   ` Samuel Thibault
2016-08-20 12:50 ` Samuel Thibault
2016-08-22  9:41 ` Wei Liu

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