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Blackfin arch: handle case of d_path() returning error in decode_address() 

d_path() can return an error.  Most of its callers do something or other to
make up something sane in that case.  Do similar for blackfin's
decode_address() call to d_path().

Signed-off-by: Tim Pepper <lnxninja@linux.vnet.ibm.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Tim Pepper 2008-10-27 12:18:36 +08:00 committed by Bryan Wu
parent 4e14e833ac
commit 6a0bfff44e
1 changed files with 5 additions and 2 deletions
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7
arch/blackfin/kernel/traps.c
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@ -147,9 +147,12 @@ static void decode_address(char *buf, unsigned long address)
char *name = p->comm;
struct file *file = vma->vm_file;
if (file)
name = d_path(&file->f_path, _tmpbuf,
if (file) {
char *d_name = d_path(&file->f_path, _tmpbuf,
sizeof(_tmpbuf));
if (!IS_ERR(d_name))
name = d_name;
}
/* FLAT does not have its text aligned to the start of
* the map while FDPIC ELF does ...