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| author | Max Filippov <jcmvbkbc@gmail.com> | 2009-05-18 01:02:33 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-20 20:46:27 +0200 |
| commit | 465b63537f93e82a2606332830801acb64467ec9 (patch) | |
| tree | baa7982839eb58726c26e6bb47a4a7c67531bb31 /drivers/net/wireless/p54 | |
| parent | p54spi: cosmetic fixes: use even byte count in SPI write; drop unused interru... (diff) | |
| download | linux-465b63537f93e82a2606332830801acb64467ec9.tar.xz linux-465b63537f93e82a2606332830801acb64467ec9.zip | |
p54spi: return status of p54spi_wakeup
Return whether wakeup operation succeeded.
Make use of this return value.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/p54')
| -rw-r--r-- | drivers/net/wireless/p54/p54spi.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c index 399190b3bed7..5038e8aa9353 100644 --- a/drivers/net/wireless/p54/p54spi.c +++ b/drivers/net/wireless/p54/p54spi.c @@ -325,7 +325,7 @@ static inline void p54spi_int_ack(struct p54s_priv *priv, u32 val) p54spi_write32(priv, SPI_ADRS_HOST_INT_ACK, cpu_to_le32(val)); } -static void p54spi_wakeup(struct p54s_priv *priv) +static int p54spi_wakeup(struct p54s_priv *priv) { /* wake the chip */ p54spi_write32(priv, SPI_ADRS_ARM_INTERRUPTS, @@ -335,13 +335,11 @@ static void p54spi_wakeup(struct p54s_priv *priv) if (!p54spi_wait_bit(priv, SPI_ADRS_HOST_INTERRUPTS, cpu_to_le32(SPI_HOST_INT_READY))) { dev_err(&priv->spi->dev, "INT_READY timeout\n"); - goto out; + return -EBUSY; } p54spi_int_ack(priv, SPI_HOST_INT_READY); - -out: - return; + return 0; } static inline void p54spi_sleep(struct p54s_priv *priv) @@ -374,7 +372,8 @@ static int p54spi_rx(struct p54s_priv *priv) struct sk_buff *skb; u16 len; - p54spi_wakeup(priv); + if (p54spi_wakeup(priv) < 0) + return -EBUSY; /* dummy read to flush SPI DMA controller bug */ p54spi_read16(priv, SPI_ADRS_GEN_PURP_1); @@ -425,7 +424,8 @@ static int p54spi_tx_frame(struct p54s_priv *priv, struct sk_buff *skb) struct p54_hdr *hdr = (struct p54_hdr *) skb->data; int ret = 0; - p54spi_wakeup(priv); + if (p54spi_wakeup(priv) < 0) + return -EBUSY; ret = p54spi_spi_write_dma(priv, hdr->req_id, skb->data, skb->len); if (ret < 0) |