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dmaengine: dmatest: Print error codes as signed value

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When we got an error from DMA mapping API we convert a negative value
to unsigned long type and hence make user confused:

  result #1: 'src mapping error' with src_off=0x19a72 dst_off=0xea len=0xccf4 (18446744073709551604)

Change this to print error codes as signed values.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200907101306.61824-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Andy Shevchenko 2020-09-07 13:13:06 +03:00 committed by Vinod Koul
parent 2fc3cad287
commit ef759e4a28
1 changed files with 8 additions and 2 deletions
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6
drivers/dma/dmatest.c
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@ -7,6 +7,7 @@
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/err.h>
#include <linux/delay.h>
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
@ -452,8 +453,13 @@ static unsigned int min_odd(unsigned int x, unsigned int y)
static void result(const char *err, unsigned int n, unsigned int src_off,
unsigned int dst_off, unsigned int len, unsigned long data)
{
if (IS_ERR_VALUE(data)) {
pr_info("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%ld)\n",
current->comm, n, err, src_off, dst_off, len, data);
} else {
pr_info("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%lu)\n",
current->comm, n, err, src_off, dst_off, len, data);
}
}
static void dbg_result(const char *err, unsigned int n, unsigned int src_off,