flash_erase: use pwrite() rather than lseek() && write()

Saves a syscall.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>

diff --git a/flash_erase.c b/flash_erase.c
index 326a29911d837f146fac9157b5e52f12ad824ac7..1421cf9246ca7c5f4941ee6138f9404d8ba7bbff 100644 (file)
--- a/flash_erase.c
+++ b/flash_erase.c
@@ -277,11 +277,7 @@ int main(int argc, char *argv[])
                                continue;
                        }
                } else {
-                       if (lseek(fd, offset, SEEK_SET) < 0) {
-                               sys_errmsg("%s: MTD lseek failure", mtd_device);
-                               continue;
-                       }
-                       if (write(fd, &cleanmarker, sizeof(cleanmarker)) != sizeof(cleanmarker)) {
+                       if (pwrite(fd, &cleanmarker, sizeof(cleanmarker), (loff_t)offset) != sizeof(cleanmarker)) {
                                sys_errmsg("%s: MTD write failure", mtd_device);
                                continue;
                        }