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| author | Nico Huber <nico.huber@secunet.com> | 2019-05-20 14:13:12 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-09-30 11:51:41 +0000 |
| commit | 9a940bf295337153728e69afdbfee8776170b7bb (patch) | |
| tree | e5c4f311945396ba39baeaced05aed34b329bfe2 | |
| parent | 5fb34e87eb94294b37420493d6863983673fa4a0 (diff) | |
| download | coreboot-9a940bf295337153728e69afdbfee8776170b7bb.tar.xz | |
drivers/i2c/lm96000: Fix integer sign issue
We accidentally converted an `int` return value to an `unsigned`,
making it impossible to check for errors with `< 0`. Fix that by
using an `int` variable.
Change-Id: I5433c27e334bc177913e138df83118b128c674b7
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35474
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
| -rw-r--r-- | src/drivers/i2c/lm96000/lm96000.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/drivers/i2c/lm96000/lm96000.c b/src/drivers/i2c/lm96000/lm96000.c index 4bb2a4a8b4..4a3c2eba14 100644 --- a/src/drivers/i2c/lm96000/lm96000.c +++ b/src/drivers/i2c/lm96000/lm96000.c @@ -178,20 +178,21 @@ static void lm96000_configure_temp_zone(struct device *const dev, static void lm96000_init(struct device *const dev) { const struct drivers_i2c_lm96000_config *const config = dev->chip_info; - unsigned int i, lm_config; + unsigned int i; + int lm_config; struct stopwatch sw; printk(BIOS_DEBUG, "lm96000: Initialization hardware monitoring.\n"); stopwatch_init_msecs_expire(&sw, 1000); lm_config = lm96000_read(dev, LM96000_CONFIG); - while ((lm_config < 0 || !(lm_config & LM96000_READY))) { + while ((lm_config < 0 || !((unsigned int)lm_config & LM96000_READY))) { mdelay(1); lm_config = lm96000_read(dev, LM96000_CONFIG); if (stopwatch_expired(&sw)) break; } - if (lm_config < 0 || !(lm_config & LM96000_READY)) { + if (lm_config < 0 || !((unsigned int)lm_config & LM96000_READY)) { printk(BIOS_INFO, "lm96000: Not ready after 1s.\n"); return; } |