diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2019-11-28 15:55:49 +0100 |
|---|---|---|
| committer | Li Yang <leoyang.li@nxp.com> | 2019-12-09 20:57:45 +0100 |
| commit | be2e9415f8b366abbe786b703436bfedf2012c21 (patch) | |
| tree | dffd14b627e76666d5e14d619131b1a819e2bcbc | |
| parent | soc: fsl: qe: avoid IS_ERR_VALUE in ucc_fast.c (diff) | |
| download | linux-be2e9415f8b366abbe786b703436bfedf2012c21.tar.xz linux-be2e9415f8b366abbe786b703436bfedf2012c21.zip | |
net/wan/fsl_ucc_hdlc: avoid use of IS_ERR_VALUE()
When building this on a 64-bit platform gcc rightly warns that the
error checking is broken (-ENOMEM stored in an u32 does not compare
greater than (unsigned long)-MAX_ERRNO). Instead, now that
qe_muram_alloc() returns s32, use that type to store the return value
and use standard kernel style "ret < 0".
Reviewed-by: Timur Tabi <timur@kernel.org>
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
| -rw-r--r-- | drivers/net/wan/fsl_ucc_hdlc.c | 10 | ||||
| -rw-r--r-- | drivers/net/wan/fsl_ucc_hdlc.h | 2 |
2 files changed, 6 insertions, 6 deletions
diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index ce6af7d5380f..405b24a5a60d 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -84,8 +84,8 @@ static int uhdlc_init(struct ucc_hdlc_private *priv) int ret, i; void *bd_buffer; dma_addr_t bd_dma_addr; - u32 riptr; - u32 tiptr; + s32 riptr; + s32 tiptr; u32 gumr; ut_info = priv->ut_info; @@ -195,7 +195,7 @@ static int uhdlc_init(struct ucc_hdlc_private *priv) priv->ucc_pram_offset = qe_muram_alloc(sizeof(struct ucc_hdlc_param), ALIGNMENT_OF_UCC_HDLC_PRAM); - if (IS_ERR_VALUE(priv->ucc_pram_offset)) { + if (priv->ucc_pram_offset < 0) { dev_err(priv->dev, "Can not allocate MURAM for hdlc parameter.\n"); ret = -ENOMEM; goto free_tx_bd; @@ -233,14 +233,14 @@ static int uhdlc_init(struct ucc_hdlc_private *priv) /* Alloc riptr, tiptr */ riptr = qe_muram_alloc(32, 32); - if (IS_ERR_VALUE(riptr)) { + if (riptr < 0) { dev_err(priv->dev, "Cannot allocate MURAM mem for Receive internal temp data pointer\n"); ret = -ENOMEM; goto free_tx_skbuff; } tiptr = qe_muram_alloc(32, 32); - if (IS_ERR_VALUE(tiptr)) { + if (tiptr < 0) { dev_err(priv->dev, "Cannot allocate MURAM mem for Transmit internal temp data pointer\n"); ret = -ENOMEM; goto free_riptr; diff --git a/drivers/net/wan/fsl_ucc_hdlc.h b/drivers/net/wan/fsl_ucc_hdlc.h index 8b3507ae1781..71d5ad0a7b98 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.h +++ b/drivers/net/wan/fsl_ucc_hdlc.h @@ -98,7 +98,7 @@ struct ucc_hdlc_private { unsigned short tx_ring_size; unsigned short rx_ring_size; - u32 ucc_pram_offset; + s32 ucc_pram_offset; unsigned short encoding; unsigned short parity; |