lkml.org 
[lkml]   [2007]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
DateWed, 15 Aug 2007 23:38:25 +0200
FromNicolas George <>
Subject[PATCH] UML: BLKGETSIZE takes a long, not an int
The BLKGETSIZE ioctl expects a pointer to a long, os_file_size was providing
an int. Therefore, ubd access to host block devices caused a segmentation
fault on 64 bits systems.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>

---
Jeff Dike wrote:
> Looks sane, can I have a properly Signed-off-by: version of the patch?

Of course. I should have sent it correctly the first time. And I am terribly
sorry for the mess my mailer have done with my second mail.

Here is the hopefully correct patch, against current git.

Regards.

diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index 6f92f73..c3ecc2a 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -320,7 +320,8 @@ int os_file_size(char *file, unsigned long long *size_out)
}

if(S_ISBLK(buf.ust_mode)){
- int fd, blocks;
+ int fd;
+ long blocks;

fd = os_open_file(file, of_read(OPENFLAGS()), 0);
if(fd < 0){
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
\
 
 \ /
  Last update: 2007-08-15 23:41    [from the cache]
©2003-2010