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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>
This commit is contained in:
Rasmus Villemoes 2019-11-28 15:55:49 +01:00 committed by Li Yang
parent c93c159aef
commit be2e9415f8
2 changed files with 6 additions and 6 deletions
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10
drivers/net/wan/fsl_ucc_hdlc.c
View File

@ -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;

2
drivers/net/wan/fsl_ucc_hdlc.h
View File

@ -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;