From: Will Sowerbutts <will@sowerbutts.com>
Date: Thu, 5 Jan 2017 21:06:30 +0000 (+0000)
Subject: Kernel: bread() should mark blocks as free on read failure
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=a6b64aaddf517ef401e8b1117d151de1e62a836d;p=FUZIX.git

Kernel: bread() should mark blocks as free on read failure
---

diff --git a/Kernel/devio.c b/Kernel/devio.c
index da77df7c..3e4b506d 100644
--- a/Kernel/devio.c
+++ b/Kernel/devio.c
@@ -61,6 +61,7 @@ uint8_t *bread(uint16_t dev, blkno_t blk, bool rewrite)
 		if (!rewrite) {
 			if (bdread(bp) == -1) {
 				udata.u_error = EIO;
+				bp->bf_busy = BF_FREE;
 				return (NULL);
 			}
 		}