Re: [PATCH] Driver Core patches for 2.6.8-rc1

From: Greg KH
Date: Wed Jul 14 2004 - 19:52:11 EST


ChangeSet 1.1784.12.6, 2004/07/14 16:09:44-07:00, dtor_core@xxxxxxxxxxxxx

[PATCH] Driver core: Fix OOPS in device_platform_unregister

Driver core: platform_device_unregister should release resources first
and only then call device_unregister, otherwise if there
are no more references to the device it will be freed and
the fucntion will try to access freed memory.

Signed-off-by: Dmitry Torokhov <dtor@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <greg@xxxxxxxxx>


drivers/base/platform.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)


diff -Nru a/drivers/base/platform.c b/drivers/base/platform.c
--- a/drivers/base/platform.c 2004-07-14 17:11:09 -07:00
+++ b/drivers/base/platform.c 2004-07-14 17:11:09 -07:00
@@ -146,13 +146,13 @@
int i;

if (pdev) {
- device_unregister(&pdev->dev);
-
for (i = 0; i < pdev->num_resources; i++) {
struct resource *r = &pdev->resource[i];
if (r->flags & (IORESOURCE_MEM|IORESOURCE_IO))
release_resource(r);
}
+
+ device_unregister(&pdev->dev);
}
}


-
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