diff options
| author | Julia Lawall <julia@diku.dk> | 2008-10-13 10:31:37 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 09:51:37 -0700 |
| commit | 41ca73229809eb3d173e316d11d3943d49924209 (patch) | |
| tree | 51ed68f3668a4c625ab9fda66b9b6e1dd6b2b90b /drivers/serial | |
| parent | 4fa971811cda4036d84574bfb38bd9b22b5c35ec (diff) | |
drivers/serial/crisv10.c: add missing put_tty_driver
alloc_tty_driver is called at the beginning of the function containing the
lines of code shown in the patch. Thus, put_tty_driver is needed before
returning in the error handling code.
The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@nr exists@
local idexpression x;
expression E,f;
position p1,p2,p3;
identifier l;
statement S;
@@
x = alloc_tty_driver@p1(...)
...
if (x == NULL) S
... when != E = x
when != put_tty_driver(x)
when != goto l;
(
return \(0\|x\);
|
return@p3 ...;
)
@script:python@
p1 << nr.p1;
p3 << nr.p3;
@@
print "%s: call on line %s not freed or saved before return on line %s" % (p1[0].file,p1[0].line,p3[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/crisv10.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c index bf94a770bb4..a467c77d8a1 100644 --- a/drivers/serial/crisv10.c +++ b/drivers/serial/crisv10.c @@ -4419,6 +4419,7 @@ rs_init(void) rs485_pa_bit)) { printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " "RS485 pin\n"); + put_tty_driver(driver); return -EBUSY; } #endif @@ -4427,6 +4428,7 @@ rs_init(void) rs485_port_g_bit)) { printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " "RS485 pin\n"); + put_tty_driver(driver); return -EBUSY; } #endif |