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platform/x86: intel_scu_ipc: Convert to check for errors first

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Convert to use usual pattern, i.e. check for errors first. This makes
code less indented and easier to read after all.

Tested-by: Ferry Toth <fntoth@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20241021133705.2933464-5-andriy.shevchenko@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Andy Shevchenko
2024-10-21 16:34:32 +03:00
committed by Ilpo Järvinen
parent ce44b96261
commit acf1b04c68
1 changed files with 19 additions and 18 deletions
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37
drivers/platform/x86/intel_scu_ipc.c
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@@ -317,12 +317,15 @@ static int pwr_reg_rdwr(struct intel_scu_ipc_dev *scu, u16 *addr, u8 *data,
}
err = intel_scu_ipc_check_status(scu);
if (!err) { /* Read rbuf */
for (nc = 0, offset = 0; nc < 4; nc++, offset += 4)
wbuf[nc] = ipc_data_readl(scu, offset);
memcpy(data, wbuf, count);
}
return err;
if (err)
return err;
/* Read rbuf */
for (nc = 0, offset = 0; nc < 4; nc++, offset += 4)
wbuf[nc] = ipc_data_readl(scu, offset);
memcpy(data, wbuf, count);
return 0;
}
/**
@@ -480,7 +483,7 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
{
size_t outbuflen = DIV_ROUND_UP(outlen, sizeof(u32));
size_t inbuflen = DIV_ROUND_UP(inlen, sizeof(u32));
u32 cmdval, inbuf[4] = {};
u32 cmdval, inbuf[4] = {}, outbuf[4] = {};
int i, err;
if (inbuflen > 4 || outbuflen > 4)
@@ -499,19 +502,17 @@ int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
cmdval = (size << 16) | (sub << 12) | cmd;
ipc_command(scu, cmdval);
err = intel_scu_ipc_check_status(scu);
if (!err) {
u32 outbuf[4] = {};
for (i = 0; i < outbuflen; i++)
outbuf[i] = ipc_data_readl(scu, 4 * i);
memcpy(out, outbuf, outlen);
if (err) {
dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err);
return err;
}
if (err)
dev_err(&scu->dev, "IPC command %#x failed with %d\n", cmdval, err);
return err;
for (i = 0; i < outbuflen; i++)
outbuf[i] = ipc_data_readl(scu, 4 * i);
memcpy(out, outbuf, outlen);
return 0;
}
EXPORT_SYMBOL(intel_scu_ipc_dev_command_with_size);