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spi: Fix comparison of different integer types

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Fix problem discovered with sparse:
+ drivers/spi/spi.c:1554:37: sparse: incompatible types in comparison expression (different signedness)
drivers/spi/spi.c: In function 'spi_write_then_read':
drivers/spi/spi.c:1554:23: warning: comparison of distinct pointer types lacks a cast [enabled by default]

The change to SPI_BUFSIZ was introduced in commit b3a223ee2, "spi:
Remove SPI_BUFSIZ restriction on spi_write_then_read()"

Cc: Mark Brown <[email protected]>
Reported-by: kbuild test robot <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
This commit is contained in:
Grant Likely 2012-12-06 23:28:36 +00:00
commit 5323f49853
1 changed files with 1 additions and 1 deletions
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2
drivers/spi/spi.c
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@ -1551,7 +1551,7 @@ int spi_write_then_read(struct spi_device *spi,
* using the pre-allocated buffer or the transfer is too large.
*/
if ((n_tx + n_rx) > SPI_BUFSIZ || !mutex_trylock(&lock)) {
local_buf = kmalloc(max(SPI_BUFSIZ, n_tx + n_rx), GFP_KERNEL);
local_buf = kmalloc(max((unsigned)SPI_BUFSIZ, n_tx + n_rx), GFP_KERNEL);
if (!local_buf)
return -ENOMEM;
} else {