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-rw-r--r--drivers/firewire/core-iso.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c
index 34a513725c9..9198e030e89 100644
--- a/drivers/firewire/core-iso.c
+++ b/drivers/firewire/core-iso.c
@@ -189,7 +189,7 @@ static int manage_bandwidth(struct fw_card *card, int irm_id, int generation,
for (try = 0; try < 5; try++) {
new = allocate ? old - bandwidth : old + bandwidth;
if (new < 0 || new > BANDWIDTH_AVAILABLE_INITIAL)
- break;
+ return -EBUSY;
data[0] = cpu_to_be32(old);
data[1] = cpu_to_be32(new);
@@ -217,7 +217,7 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
u32 channels_mask, u64 offset, bool allocate, __be32 data[2])
{
__be32 c, all, old;
- int i, retry = 5;
+ int i, ret = -EIO, retry = 5;
old = all = allocate ? cpu_to_be32(~0) : 0;
@@ -225,6 +225,8 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
if (!(channels_mask & 1 << i))
continue;
+ ret = -EBUSY;
+
c = cpu_to_be32(1 << (31 - i));
if ((old & c) != (all & c))
continue;
@@ -253,11 +255,13 @@ static int manage_channel(struct fw_card *card, int irm_id, int generation,
if (retry) {
retry--;
i--;
+ } else {
+ ret = -EIO;
}
}
}
- return -EIO;
+ return ret;
}
static void deallocate_channel(struct fw_card *card, int irm_id,