From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Sun, 15 Jun 2008 19:00:23 +0000 (+0200)
Subject: ide-cs: fix releasing I/O resources
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fbc69fd9b76158daaa83e5372e44fdd81df20f92;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

ide-cs: fix releasing I/O resources

hwif content is already freed after ide_release() call so cache
hwif->io_ports.{data,ctl}_addr in local variables in ide_detach().

This fixes post-2.6.25 regression.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
---

diff --git a/drivers/ide/legacy/ide-cs.c b/drivers/ide/legacy/ide-cs.c
index d08107db54d4..f633b6b3c7f3 100644
--- a/drivers/ide/legacy/ide-cs.c
+++ b/drivers/ide/legacy/ide-cs.c
@@ -135,13 +135,17 @@ static void ide_detach(struct pcmcia_device *link)
 {
     ide_info_t *info = link->priv;
     ide_hwif_t *hwif = info->hwif;
+    unsigned long data_addr, ctl_addr;
 
     DEBUG(0, "ide_detach(0x%p)\n", link);
 
+    data_addr = hwif->io_ports.data_addr;
+    ctl_addr  = hwif->io_ports.ctl_addr;
+
     ide_release(link);
 
-    release_region(hwif->io_ports.ctl_addr, 1);
-    release_region(hwif->io_ports.data_addr, 8);
+    release_region(ctl_addr, 1);
+    release_region(data_addr, 8);
 
     kfree(info);
 } /* ide_detach */