diff options
| author | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
|---|---|---|
| committer | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-04-26 21:56:19 +0400 |
| commit | 8ef1bb539203629f77a61976e4f25415e1083bff (patch) | |
| tree | 4fee25aca0928f112716fb02d27b1b355d0843b4 /drivers/firewire/ohci.c | |
| parent | a3bcbbee83f55cbaec9b2ad748e7300c7feb2192 (diff) | |
| parent | b91ce4d14a21fc04d165be30319541e0f9204f15 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/firewire/ohci.c')
| -rw-r--r-- | drivers/firewire/ohci.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index e33917bf97d..94b16e0340a 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -24,7 +24,6 @@ #include <linux/dma-mapping.h> #include <linux/firewire.h> #include <linux/firewire-constants.h> -#include <linux/gfp.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/io.h> @@ -35,6 +34,7 @@ #include <linux/moduleparam.h> #include <linux/pci.h> #include <linux/pci_ids.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <linux/string.h> @@ -1158,7 +1158,7 @@ static void handle_local_lock(struct fw_ohci *ohci, struct fw_packet *packet, u32 csr) { struct fw_packet response; - int tcode, length, ext_tcode, sel; + int tcode, length, ext_tcode, sel, try; __be32 *payload, lock_old; u32 lock_arg, lock_data; @@ -1185,21 +1185,26 @@ static void handle_local_lock(struct fw_ohci *ohci, reg_write(ohci, OHCI1394_CSRCompareData, lock_arg); reg_write(ohci, OHCI1394_CSRControl, sel); - if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000) - lock_old = cpu_to_be32(reg_read(ohci, OHCI1394_CSRData)); - else - fw_notify("swap not done yet\n"); + for (try = 0; try < 20; try++) + if (reg_read(ohci, OHCI1394_CSRControl) & 0x80000000) { + lock_old = cpu_to_be32(reg_read(ohci, + OHCI1394_CSRData)); + fw_fill_response(&response, packet->header, + RCODE_COMPLETE, + &lock_old, sizeof(lock_old)); + goto out; + } + + fw_error("swap not done (CSR lock timeout)\n"); + fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0); - fw_fill_response(&response, packet->header, - RCODE_COMPLETE, &lock_old, sizeof(lock_old)); out: fw_core_handle_response(&ohci->card, &response); } static void handle_local_request(struct context *ctx, struct fw_packet *packet) { - u64 offset; - u32 csr; + u64 offset, csr; if (ctx == &ctx->ohci->at_request_ctx) { packet->ack = ACK_PENDING; |