diff options
| author | Heinrich Schuchardt <xypron.glpk@gmx.de> | 2020-05-09 18:20:18 +0200 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2020-05-28 05:52:46 +0200 |
| commit | da585c3c680add381662417b11cfc7d0ac310ba5 (patch) | |
| tree | bc6aef5ae81511cba52577ff09f90b538cb62508 | |
| parent | f6f9a016899e62cb65016421a09fd3fe06ce660f (diff) | |
| download | u-boot-da585c3c680add381662417b11cfc7d0ac310ba5.tar.gz | |
i2c: observe scl_count in i2c_deblock_gpio_loop()
When compiling with -Wtype-limits we see this error:
drivers/i2c/i2c-uclass.c: In function ‘i2c_deblock_gpio_loop’:
drivers/i2c/i2c-uclass.c:517:21: error: comparison of
unsigned expression >= 0 is always true [-Werror=type-limits]
517 | while (scl_count-- >= 0) {
|
Don't loop forever.
Fixes: 1f746a2c82b1 ("i2c: Make deblock delay and SCL clock configurable")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
| -rw-r--r-- | drivers/i2c/i2c-uclass.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c index 8166df7ba6..8bc69e870f 100644 --- a/drivers/i2c/i2c-uclass.c +++ b/drivers/i2c/i2c-uclass.c @@ -516,7 +516,7 @@ int i2c_deblock_gpio_loop(struct gpio_desc *sda_pin, udelay(delay); /* Toggle SCL until slave release SDA */ - while (scl_count-- >= 0) { + for (; scl_count; --scl_count) { i2c_gpio_set_pin(scl_pin, 1); udelay(delay); i2c_gpio_set_pin(scl_pin, 0); |