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authorClemens Ladisch <clemens@ladisch.de>2010-03-15 08:20:32 -0400
committerStefan Richter <stefanr@s5r6.in-berlin.de>2010-03-15 09:29:44 -0400
commitcf36df6bfb49fd265a39f676bfc9718029fef160 (patch)
tree684051014d4d516a5510797e4b887a06d412cb65 /drivers/firewire
parent6fdb2ee243404c7cbf530387bf904ad1841ebf5b (diff)
firewire: core: fw_iso_resource_manage: fix error handling
If the bandwidth allocation fails, the error must be returned in *channel regardless of whether the channel allocation succeeded. Checking for c >= 0 is not correct if no channel allocation was requested, in which case this part of the code is reached with c == -EINVAL. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire')
-rw-r--r--drivers/firewire/core-iso.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 1c0b504a42f3..99c20f1b613a 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -331,8 +331,9 @@ void fw_iso_resource_manage(struct fw_card *card, int generation,
331 if (ret < 0) 331 if (ret < 0)
332 *bandwidth = 0; 332 *bandwidth = 0;
333 333
334 if (allocate && ret < 0 && c >= 0) { 334 if (allocate && ret < 0) {
335 deallocate_channel(card, irm_id, generation, c, buffer); 335 if (c >= 0)
336 deallocate_channel(card, irm_id, generation, c, buffer);
336 *channel = ret; 337 *channel = ret;
337 } 338 }
338} 339}