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| author | Huang Shijie <b32955@freescale.com> | 2012-11-01 06:58:17 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@linux.intel.com> | 2012-11-15 18:50:30 +0100 |
| commit | 6f9f59ee2e254a7e997985d8eb708930da49245a (patch) | |
| tree | b2fe0de90ac6f12c33c9a281a4102df9afe5f08e /Documentation | |
| parent | mtd: map: Fix compilation warning (diff) | |
| download | linux-6f9f59ee2e254a7e997985d8eb708930da49245a.tar.xz linux-6f9f59ee2e254a7e997985d8eb708930da49245a.zip | |
mtd: cmdlinepart: fix the overflow of big mtd partitions
When the kernel parses the following cmdline
#mtdparts=gpmi-nand:16m(boot),16m(kernel),1g(home),4g(test),-(usr)
for a big nand chip Micron MT29F64G08AFAAAWP(8GB), we got the following wrong
result:
.............................................
"mtd: partition size too small (0)"
.............................................
We can not get any partition.
The "4g(test)" partition triggers a overflow of the "size". The memparse()
returns 4g to the "size", but the size is "unsigned long" type, so a overflow
occurs, the "size" becomes zero in the end.
This patch changes the "size"/"offset" to "unsigned long long" type,
and replaces the UINT_MAX with ULLONG_MAX for macros SIZE_REMAINING and
OFFSET_CONTINUOUS.
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions