From: Alan Cox <alan@linux.intel.com>
Date: Thu, 23 Nov 2017 02:25:56 +0000 (+0000)
Subject: devio: correctly mark failed read block as unusable
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=0af4e5d7c3006d6b3dbc835c5391507481163c29;p=FUZIX.git

devio: correctly mark failed read block as unusable
---

diff --git a/Kernel/devio.c b/Kernel/devio.c
index ebf94377..9ad7a6c5 100644
--- a/Kernel/devio.c
+++ b/Kernel/devio.c
@@ -62,6 +62,7 @@ bufptr bread(uint16_t dev, blkno_t blk, bool rewrite)
 			if (bdread(bp) != BLKSIZE) {
 				udata.u_error = EIO;
 				bp->bf_busy = BF_FREE;
+				bp->bf_dev = NO_DEVICE;
 				return (NULL);
 			}
 		}