From: Jens Axboe <axboe@suse.de>
Date: Wed, 23 Nov 2005 11:49:19 +0000 (+0100)
Subject: [PATCH] sgioread: fix -s option
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=fce10cc679c1e1d79cc202d0762bf8410d41623e;p=disktools.git

[PATCH] sgioread: fix -s option
---

diff --git a/sgioread.c b/sgioread.c
index f678fd6..2f1e988 100644
--- a/sgioread.c
+++ b/sgioread.c
@@ -218,6 +218,7 @@ int main(int argc, char *argv[])
 		buffer = ALIGN(ptr);
 
 	lba = start_lba;
+	if (!nr_blocks)
 		nr_blocks = end_lba - lba + 1;
 
 	printf("disk %s: reading LBA %lu -> %lu", device, start_lba, end_lba);
@@ -276,7 +277,7 @@ int main(int argc, char *argv[])
 		if (fd_out != -1)
 			write_the_crap(fd_out, buffer, blocks * block_size);
 
-	} while (lba <= end_lba);
+	} while (lba <= end_lba && nr_blocks);
 
 	print_datarate(sectors_since_last, time_spent);
 	printf("\n");