From: Tomohiro IKEDA <rilakkuma.san.xjapan@gmail.com>
Date: Tue, 14 Jun 2022 23:45:19 +0000 (+0900)
Subject: pcm: dmix - Add error handler for `fgets`
X-Git-Tag: v1.2.7.1~2
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=ff0db96bbc16440f6f0558f797bcc31e89f6df9e;p=alsa-lib.git

pcm: dmix - Add error handler for `fgets`

Fixes: https://github.com/alsa-project/alsa-lib/pull/238
Signed-off-by: Tomohiro IKEDA <rilakkuma.san.xjapan@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---

diff --git a/src/pcm/pcm_dmix_i386.c b/src/pcm/pcm_dmix_i386.c
index 82a91c5c..ea55d8ec 100644
--- a/src/pcm/pcm_dmix_i386.c
+++ b/src/pcm/pcm_dmix_i386.c
@@ -104,8 +104,7 @@ static void mix_select_callbacks(snd_pcm_direct_t *dmix)
 		/* try to determine the capabilities of the CPU */
 		in = fopen("/proc/cpuinfo", "r");
 		if (in) {
-			while (!feof(in)) {
-				fgets(line, sizeof(line), in);
+			while (!feof(in) && (fgets(line, sizeof(line), in) != NULL)) {
 				if (!strncmp(line, "processor", 9))
 					smp++;
 				else if (!strncmp(line, "flags", 5)) {
diff --git a/src/pcm/pcm_dmix_x86_64.c b/src/pcm/pcm_dmix_x86_64.c
index 4d882bfd..1c80e181 100644
--- a/src/pcm/pcm_dmix_x86_64.c
+++ b/src/pcm/pcm_dmix_x86_64.c
@@ -87,8 +87,7 @@ static void mix_select_callbacks(snd_pcm_direct_t *dmix)
 		/* try to determine, if we have SMP */
 		in = fopen("/proc/cpuinfo", "r");
 		if (in) {
-			while (!feof(in)) {
-				fgets(line, sizeof(line), in);
+			while (!feof(in) && (fgets(line, sizeof(line), in) != NULL)) {
 				if (!strncmp(line, "processor", 9))
 					smp++;
 			}