84 lines
2.4 KiB
Diff
84 lines
2.4 KiB
Diff
|
From 88a334ac2f98affcc526e861c2ed1b8bd2c34b3c Mon Sep 17 00:00:00 2001
|
||
|
|
From: Pavel Reichl <preichl@redhat.com>
|
||
|
|
Date: Wed, 11 May 2022 23:20:43 +0200
|
||
|
|
Subject: [PATCH] exfatprogs: fix some minor code issues
|
||
|
|
|
||
|
|
* Add checking of function return value
|
||
|
|
* Fix potentially overflowing expression
|
||
|
|
|
||
|
|
Signed-off-by: Pavel Reichl <preichl@redhat.com>
|
||
|
|
---
|
||
|
|
fsck/de_iter.c | 9 ++++++---
|
||
|
|
lib/libexfat.c | 13 ++++++++++---
|
||
|
|
2 files changed, 16 insertions(+), 6 deletions(-)
|
||
|
|
|
||
|
|
diff --git a/fsck/de_iter.c b/fsck/de_iter.c
|
||
|
|
index bc95c49..587b027 100644
|
||
|
|
--- a/fsck/de_iter.c
|
||
|
|
+++ b/fsck/de_iter.c
|
||
|
|
@@ -82,6 +82,9 @@ static int read_ahead_next_blocks(struct exfat_de_iter *iter,
|
||
|
|
offset >= iter->ra_begin_offset) {
|
||
|
|
ret = get_next_clus(exfat, iter->parent,
|
||
|
|
p_clus, &ra_p_clus);
|
||
|
|
+ if (ret)
|
||
|
|
+ return ret;
|
||
|
|
+
|
||
|
|
if (ra_p_clus == EXFAT_EOF_CLUSTER)
|
||
|
|
return -EIO;
|
||
|
|
|
||
|
|
@@ -172,10 +175,10 @@ static ssize_t read_block(struct exfat_de_iter *iter, unsigned int block)
|
||
|
|
ret = get_next_clus(exfat, iter->parent,
|
||
|
|
prev_desc->p_clus, &desc->p_clus);
|
||
|
|
desc->offset = 0;
|
||
|
|
- if (!ret && desc->p_clus == EXFAT_EOF_CLUSTER)
|
||
|
|
- return EOF;
|
||
|
|
- else if (ret)
|
||
|
|
+ if (ret)
|
||
|
|
return ret;
|
||
|
|
+ else if (desc->p_clus == EXFAT_EOF_CLUSTER)
|
||
|
|
+ return EOF;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
diff --git a/lib/libexfat.c b/lib/libexfat.c
|
||
|
|
index 42e3fdc..ee48d3a 100644
|
||
|
|
--- a/lib/libexfat.c
|
||
|
|
+++ b/lib/libexfat.c
|
||
|
|
@@ -470,7 +470,12 @@ int exfat_set_volume_label(struct exfat_blk_dev *bd,
|
||
|
|
exfat_err("volume entry write failed: %d\n", errno);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
- fsync(bd->dev_fd);
|
||
|
|
+
|
||
|
|
+ if (fsync(bd->dev_fd) == -1) {
|
||
|
|
+ exfat_err("failed to sync volume entry: %d, %s\n", errno,
|
||
|
|
+ strerror(errno));
|
||
|
|
+ return -1;
|
||
|
|
+ }
|
||
|
|
|
||
|
|
exfat_info("new label: %s\n", label_input);
|
||
|
|
return 0;
|
||
|
|
@@ -479,7 +484,8 @@ int exfat_set_volume_label(struct exfat_blk_dev *bd,
|
||
|
|
int exfat_read_sector(struct exfat_blk_dev *bd, void *buf, unsigned int sec_off)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
- unsigned long long offset = sec_off * bd->sector_size;
|
||
|
|
+ unsigned long long offset =
|
||
|
|
+ (unsigned long long)sec_off * bd->sector_size;
|
||
|
|
|
||
|
|
ret = pread(bd->dev_fd, buf, bd->sector_size, offset);
|
||
|
|
if (ret < 0) {
|
||
|
|
@@ -493,7 +499,8 @@ int exfat_write_sector(struct exfat_blk_dev *bd, void *buf,
|
||
|
|
unsigned int sec_off)
|
||
|
|
{
|
||
|
|
int bytes;
|
||
|
|
- unsigned long long offset = sec_off * bd->sector_size;
|
||
|
|
+ unsigned long long offset =
|
||
|
|
+ (unsigned long long)sec_off * bd->sector_size;
|
||
|
|
|
||
|
|
bytes = pwrite(bd->dev_fd, buf, bd->sector_size, offset);
|
||
|
|
if (bytes != (int)bd->sector_size) {
|
||
|
|
--
|
||
|
|
2.35.3
|
||
|
|
|