diff options
author | Julia Lawall <julia@diku.dk> | 2008-10-13 05:31:37 -0400 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-13 12:51:37 -0400 |
commit | 41ca73229809eb3d173e316d11d3943d49924209 (patch) | |
tree | 51ed68f3668a4c625ab9fda66b9b6e1dd6b2b90b | |
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>
-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 bf94a770bb44..a467c77d8a13 100644 --- a/drivers/serial/crisv10.c +++ b/drivers/serial/crisv10.c | |||
@@ -4419,6 +4419,7 @@ rs_init(void) | |||
4419 | rs485_pa_bit)) { | 4419 | rs485_pa_bit)) { |
4420 | printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " | 4420 | printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " |
4421 | "RS485 pin\n"); | 4421 | "RS485 pin\n"); |
4422 | put_tty_driver(driver); | ||
4422 | return -EBUSY; | 4423 | return -EBUSY; |
4423 | } | 4424 | } |
4424 | #endif | 4425 | #endif |
@@ -4427,6 +4428,7 @@ rs_init(void) | |||
4427 | rs485_port_g_bit)) { | 4428 | rs485_port_g_bit)) { |
4428 | printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " | 4429 | printk(KERN_CRIT "ETRAX100LX serial: Could not allocate " |
4429 | "RS485 pin\n"); | 4430 | "RS485 pin\n"); |
4431 | put_tty_driver(driver); | ||
4430 | return -EBUSY; | 4432 | return -EBUSY; |
4431 | } | 4433 | } |
4432 | #endif | 4434 | #endif |