diff options
Diffstat (limited to 'tools/env')
| -rw-r--r-- | tools/env/fw_env.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c index 8734663cd4c..c6378ecf34f 100644 --- a/tools/env/fw_env.c +++ b/tools/env/fw_env.c @@ -946,11 +946,17 @@ static int flash_read_buf(int dev, int fd, void *buf, size_t count, lseek(fd, blockstart + block_seek, SEEK_SET); rc = read(fd, buf + processed, readlen); - if (rc != readlen) { + if (rc == -1) { fprintf(stderr, "Read error on %s: %s\n", DEVNAME(dev), strerror(errno)); return -1; } + if (rc != readlen) { + fprintf(stderr, "Read error on %s: " + "Attempted to read %d bytes but got %d\n", + DEVNAME(dev), readlen, rc); + return -1; + } #ifdef DEBUG fprintf(stderr, "Read 0x%x bytes at 0x%llx on %s\n", rc, (unsigned long long)blockstart + block_seek, |