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authorAlexandre Bounine <alexandre.bounine@idt.com>2011-02-25 14:44:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-02-25 15:07:37 -0800
commitfe41947e1aa12e96a50edaee123b4e4de03b668b (patch)
treefe29db5a488a7bb175801102c3d9372c7e5bbe1d /drivers/rapidio/rio-sysfs.c
parent99b0d365e5ade293c5fa25a9f1a49ac764656670 (diff)
downloadop-kernel-dev-fe41947e1aa12e96a50edaee123b4e4de03b668b.zip
op-kernel-dev-fe41947e1aa12e96a50edaee123b4e4de03b668b.tar.gz
rapidio: fix sysfs config attribute to access 16MB of maint space
Fixes sysfs config attribute to allow access to entire 16MB maintenance space of RapidIO devices. Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com> Cc: Kumar Gala <galak@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Li Yang <leoli@freescale.com> Cc: Thomas Moll <thomas.moll@sysgo.com> Cc: Micha Nelissen <micha@neli.hopto.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rapidio/rio-sysfs.c')
-rw-r--r--drivers/rapidio/rio-sysfs.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index 76b4185..1269fbd 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -77,9 +77,9 @@ rio_read_config(struct file *filp, struct kobject *kobj,
/* Several chips lock up trying to read undefined config space */
if (capable(CAP_SYS_ADMIN))
- size = 0x200000;
+ size = RIO_MAINT_SPACE_SZ;
- if (off > size)
+ if (off >= size)
return 0;
if (off + count > size) {
size -= off;
@@ -147,10 +147,10 @@ rio_write_config(struct file *filp, struct kobject *kobj,
loff_t init_off = off;
u8 *data = (u8 *) buf;
- if (off > 0x200000)
+ if (off >= RIO_MAINT_SPACE_SZ)
return 0;
- if (off + count > 0x200000) {
- size = 0x200000 - off;
+ if (off + count > RIO_MAINT_SPACE_SZ) {
+ size = RIO_MAINT_SPACE_SZ - off;
count = size;
}
@@ -200,7 +200,7 @@ static struct bin_attribute rio_config_attr = {
.name = "config",
.mode = S_IRUGO | S_IWUSR,
},
- .size = 0x200000,
+ .size = RIO_MAINT_SPACE_SZ,
.read = rio_read_config,
.write = rio_write_config,
};
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