From: relan <relan@users.noreply.github.com>
Date: Sun, 1 Jun 2014 20:02:48 +0000 (+0000)
Subject: Print errno on device open/close/fsync failure.
X-Git-Tag: android-x86-6.0-r1~48
X-Git-Url: http://git.osdn.net/view?p=android-x86%2Fexternal-exfat.git;a=commitdiff_plain;h=770484564e0153caeb23cdeaa8a47afee4c4f1cd

Print errno on device open/close/fsync failure.

Signed-off-by: Helg Bredow <xx404@msn.com>
---

diff --git a/libexfat/io.c b/libexfat/io.c
index 05fac61..9743c4e 100644
--- a/libexfat/io.c
+++ b/libexfat/io.c
@@ -100,7 +100,8 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		if (dev->fd == -1)
 		{
 			free(dev);
-			exfat_error("failed to open '%s' in read-only mode", spec);
+			exfat_error("failed to open '%s' in read-only mode: %s", spec,
+					strerror(errno));
 			return NULL;
 		}
 		dev->mode = EXFAT_MODE_RO;
@@ -110,7 +111,8 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 		if (dev->fd == -1)
 		{
 			free(dev);
-			exfat_error("failed to open '%s' in read-write mode", spec);
+			exfat_error("failed to open '%s' in read-write mode: %s", spec,
+					strerror(errno));
 			return NULL;
 		}
 		dev->mode = EXFAT_MODE_RW;
@@ -130,7 +132,7 @@ struct exfat_dev* exfat_open(const char* spec, enum exfat_mode mode)
 			break;
 		}
 		free(dev);
-		exfat_error("failed to open '%s'", spec);
+		exfat_error("failed to open '%s': %s", spec, strerror(errno));
 		return NULL;
 	}
 
@@ -254,7 +256,7 @@ int exfat_close(struct exfat_dev* dev)
 #endif
 	if (close(dev->fd) != 0)
 	{
-		exfat_error("failed to close device");
+		exfat_error("failed to close device: %s", strerror(errno));
 		rc = -EIO;
 	}
 	free(dev);
@@ -274,7 +276,7 @@ int exfat_fsync(struct exfat_dev* dev)
 #endif
 	if (fsync(dev->fd) != 0)
 	{
-		exfat_error("fsync failed");
+		exfat_error("fsync failed: %s", strerror(errno));
 		rc = -EIO;
 	}
 	return rc;