X-Git-Url: http://git.openwrt.org/?p=project%2Ffstools.git;a=blobdiff_plain;f=libfstools%2Fmtd.c;fp=libfstools%2Fmtd.c;h=aae633e6ff1ff2eb29b2178fb22eb9d128bbcb03;hp=77c71eeb29a3ba7a67c42514b5e17e324baf53d4;hb=f5c7c1813f52e6d7b59ecfb2f9f95e69b05b1980;hpb=189b41b6b48786a51eb2b8bc450cb7d560f030f0

diff --git a/libfstools/mtd.c b/libfstools/mtd.c
index 77c71ee..aae633e 100644
--- a/libfstools/mtd.c
+++ b/libfstools/mtd.c
@@ -36,20 +36,31 @@ struct mtd_volume {
 
 static struct driver mtd_driver;
 
+static int mtd_open_device(const char *dev)
+{
+	int ret;
+
+	ret = open(dev, O_RDWR | O_SYNC);
+	if (ret < 0)
+		ret = open(dev, O_RDONLY);
+
+	return ret;
+}
+
 static int mtd_open(const char *mtd, int block)
 {
 	FILE *fp;
 	char dev[PATH_MAX];
-	int i, ret, flags = O_RDWR | O_SYNC;
+	int i, ret;
 
 	if ((fp = fopen("/proc/mtd", "r"))) {
 		while (fgets(dev, sizeof(dev), fp)) {
 			if (sscanf(dev, "mtd%d:", &i) && strstr(dev, mtd)) {
 				snprintf(dev, sizeof(dev), "/dev/mtd%s/%d", (block ? "block" : ""), i);
-				ret = open(dev, flags);
+				ret = mtd_open_device(dev);
 				if (ret < 0) {
 					snprintf(dev, sizeof(dev), "/dev/mtd%s%d", (block ? "block" : ""), i);
-					ret = open(dev, flags);
+					ret = mtd_open_device(dev);
 				}
 				fclose(fp);
 				return ret;
@@ -58,7 +69,7 @@ static int mtd_open(const char *mtd, int block)
 		fclose(fp);
 	}
 
-	return open(mtd, flags);
+	return mtd_open_device(mtd);
 }
 
 static void mtd_volume_close(struct mtd_volume *p)