From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Thu, 24 Jul 2008 20:53:34 +0000 (+0200)
Subject: gayle: release resources on ide_host_add() failure
X-Git-Tag: v2.6.27-rc1~509^2~8
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=96cc112c09b3c6674da01ef8b377f7a916883ea2;p=platform%2Fkernel%2Flinux-3.10.git

gayle: release resources on ide_host_add() failure

"gayle: reserve memory resources at once" patch temporary removed
freeing of resources on failure (to ease convertion to ide_host_add()
interface).  This patch fixes it.

Thanks to Geert for noticing the issue.

Noticed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/legacy/gayle.c b/drivers/ide/legacy/gayle.c
index dd5c467..51ba085 100644
--- a/drivers/ide/legacy/gayle.c
+++ b/drivers/ide/legacy/gayle.c
@@ -127,7 +127,7 @@ static int __init gayle_init(void)
     unsigned long phys_base, res_start, res_n;
     unsigned long base, ctrlport, irqport;
     ide_ack_intr_t *ack_intr;
-    int a4000, i;
+    int a4000, i, rc;
     hw_regs_t hw[GAYLE_NUM_HWIFS], *hws[] = { NULL, NULL, NULL, NULL };
 
     if (!MACH_IS_AMIGA)
@@ -179,7 +179,11 @@ found:
 	hws[i] = &hw[i];
     }
 
-    return ide_host_add(NULL, hws, NULL);
+    rc = ide_host_add(NULL, hws, NULL);
+    if (rc)
+	release_mem_region(res_start, res_n);
+
+    return rc;
 }
 
 module_init(gayle_init);