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| author | Max Asbock <masbock@us.ibm.com> | 2005-06-21 17:16:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 19:07:35 -0700 |
| commit | 8818760512424f60ad9fafb7a087b007a9274eb3 (patch) | |
| tree | fb49ce398750f42803d4631a24e4a2ffe35d79d7 /drivers/misc/ibmasm/ibmasmfs.c | |
| parent | 278d72ae8803ffcd16070c95fe1d53f4466dc741 (diff) | |
| download | linux-8818760512424f60ad9fafb7a087b007a9274eb3.tar.gz linux-8818760512424f60ad9fafb7a087b007a9274eb3.tar.bz2 linux-8818760512424f60ad9fafb7a087b007a9274eb3.zip | |
[PATCH] ibmasm driver: fix race in command refcount logic
This patch fixes a race in the command reference counting logic by putting
spinlocks around kobject_put() in the command_put function.
- Also added debug messages.
- Changed a memcpy to memcpy_fromio since we are reading from io space.
Signed-off-by: Max Asbock <masbock@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/misc/ibmasm/ibmasmfs.c')
| -rw-r--r-- | drivers/misc/ibmasm/ibmasmfs.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index ca839162e4f7..5c550fcac2c4 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -321,7 +321,7 @@ static ssize_t command_file_write(struct file *file, const char __user *ubuff, s if (command_data->command) return -EAGAIN; - cmd = ibmasm_new_command(count); + cmd = ibmasm_new_command(command_data->sp, count); if (!cmd) return -ENOMEM; |