stm32mp1: update sysconf_init on misc_read result

Update management of misc_read in sysconf_init, which now return
length of data after the commit 8729b1ae2cbd ("misc: Update read()
and write() methods to return bytes xfered")

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c
index d994d38..95e6078 100644 (file)
--- a/board/st/stm32mp1/stm32mp1.c
+++ b/board/st/stm32mp1/stm32mp1.c
@@ -487,7 +487,7 @@ static void sysconf_init(void)
                }
 
                ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
-               if (!ret)
+               if (ret > 0)
                        otp = otp & BIT(13);
 
                /* get VDD = vdd-supply */