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Staging: dst: correct error-handling code 

dst_state_alloc returns an ERR_PTR value in an error case instead of NULL.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@match exists@
expression x, E;
statement S1, S2;
@@

x = dst_state_alloc(...)
... when != x = E
(
*  if (x == NULL || ...) S1 else S2
|
*  if (x == NULL && ...) S1 else S2
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Julia Lawall 2009-07-28 17:52:56 +02:00 committed by Greg Kroah-Hartman
parent b6ac161364
commit d0e0507ad6
1 changed files with 1 additions and 1 deletions
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2
drivers/staging/dst/export.c
View File

@ -159,7 +159,7 @@ static struct dst_state *dst_accept_client(struct dst_state *st)
goto err_out_exit; goto err_out_exit;
new = dst_state_alloc(st->node); new = dst_state_alloc(st->node);
if (!new) { if (IS_ERR(new)) {
err = -ENOMEM; err = -ENOMEM;
goto err_out_release; goto err_out_release;
} }