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ACPI: SBS: Fix present test in acpi_battery_read() 

The battery->present variable is a 1 bit bitfield in a u8.  This means
that the "state & (1 << battery->id)" test will only work when
"battery->id" is zero, otherwise ->present is zero.  Fix this by adding
a !!.

Fixes: db1c291af7 ("ACPI: SBS: Make SBS reads table-driven.")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/aQSzr4NynN2mpEvG@stanley.mountain
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dan Carpenter 2025-10-31 16:03:43 +03:00 committed by Rafael J. Wysocki
parent 6146a0f1df
commit 01e11d18da
1 changed files with 1 additions and 1 deletions
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2
drivers/acpi/sbs.c
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@ -487,7 +487,7 @@ static int acpi_battery_read(struct acpi_battery *battery)
if (result)
return result;
battery->present = state & (1 << battery->id);
battery->present = !!(state & (1 << battery->id));
if (!battery->present)
return 0;