From: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Date: Fri, 6 Jan 2012 21:22:41 +0000 (-0200)
Subject: config: check if opening /proc/cmdline succeeded
X-Git-Tag: v4~78
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd1cf10fc468b64c787ace4eae93f159032580d0;p=thirdparty%2Fkmod.git

config: check if opening /proc/cmdline succeeded
---

diff --git a/libkmod/libkmod-config.c b/libkmod/libkmod-config.c
index f4372472..e55e2309 100644
--- a/libkmod/libkmod-config.c
+++ b/libkmod/libkmod-config.c
@@ -444,6 +444,12 @@ static int kmod_config_parse_kcmdline(struct kmod_config *config)
 	char *p, *modname,  *param = NULL, *value = NULL;
 
 	fd = open("/proc/cmdline", O_RDONLY|O_CLOEXEC);
+	if (fd < 0) {
+		err = -errno;
+		DBG(config->ctx, "could not open '/proc/cmdline' for reading: %m\n");
+		return err;
+	}
+
 	err = read_str_safe(fd, buf, sizeof(buf));
 	close(fd);
 	if (err < 0) {